USPC Patent Classifications

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Class 434 education and demonstration
uspcdescription
434/1434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy
434/2434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (2) radar
434/3434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (2) radar (3) cathode ray screen display simulated by light means (e.g., light spot projected onto screen, etc.)
434/4434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (2) radar (4) optical means (e.g., image projector, etc.) or light or sound sensor (e.g., television camera, microphone, etc.) included in a simulator
434/5434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (2) radar (5) interference simulation
434/6434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (6) sonar
434/7434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (6) sonar (7) interference simulation
434/8434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (6) sonar (8) simulation of doppler shift of echo
434/9434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (6) sonar (9) simulation of plural detector system
434/10434 education and demonstration/(1) detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy (6) sonar (10) simulation by use of sound recording
434/11434 education and demonstration/(11) organized armed or unarmed conflict or shooting
434/12434 education and demonstration/(11) organized armed or unarmed conflict or shooting (12) self-propelled projectile
434/13434 education and demonstration/(11) organized armed or unarmed conflict or shooting (12) self-propelled projectile (13) launched underwater
434/14434 education and demonstration/(11) organized armed or unarmed conflict or shooting (14) aerial warfare
434/15434 education and demonstration/(11) organized armed or unarmed conflict or shooting (14) aerial warfare (15) bombing
434/16434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery
434/17434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (17) gunfire spotting
434/18434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (18) gun recoil simulation
434/19434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (19) gun aiming
434/20434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (19) gun aiming (20) cinematographic or cathode ray screen display
434/21434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (19) gun aiming (21) training apparatus using beam of infrared, visible light, or ultraviolet radiation
434/22434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (19) gun aiming (21) training apparatus using beam of infrared, visible light, or ultraviolet radiation (22) beam sensor included in apparatus
434/23434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (19) gun aiming (23) means (e.g., target, terrain model, etc.) marked or pierced to simulate projectile impact point
434/24434 education and demonstration/(11) organized armed or unarmed conflict or shooting (16) gunnery (24) gun loading or projectile preparation (e.g., fuse setting, etc.)
434/25434 education and demonstration/(11) organized armed or unarmed conflict or shooting (25) water warfare
434/26434 education and demonstration/(11) organized armed or unarmed conflict or shooting (25) water warfare (26) periscope view simulation
434/27434 education and demonstration/(11) organized armed or unarmed conflict or shooting (27) range finding
434/28434 education and demonstration/(28) aircraft wind drift simulation
434/29434 education and demonstration/(29) vehicle operator instruction or testing
434/30434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle
434/31434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (31) automatic pilot
434/32434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (32) model viewed and maneuvered by trainee from point remote therefrom
434/33434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (33) helicopter
434/34434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (34) outer space vehicle
434/35434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (35) in flight
434/36434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (35) in flight (36) with simulation of night or reduced visibility flight
434/37434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (37) aircraft, aircraft simulator, or means connected thereto traveling on ground or water during simulated flight training
434/38434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft
434/39434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft (39) view simulating means located on belt or cylinder
434/40434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft (40) view simulating means located on element having spherical surface
434/41434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft (41) simulation of night or reduced visibility flight
434/42434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft (41) simulation of night or reduced visibility flight (42) runway outlining or approach lights simulated
434/43434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft (43) view simulated by cathode ray screen display
434/44434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (38) simulation of view from aircraft (44) view simulated by projected image
434/45434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (45) simulation of feel of control means (e.g., flight control stick, etc.)
434/46434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (46) ground trainer agitated to simulate rough air buffeting or engine induced vibration of aircraft
434/47434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (47) display or recordation of simulated flight path of ground trainer
434/48434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (48) aircraft sound simulation
434/49434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (49) aircraft or ambient condition simulated electrically or indicated by instrument or alarm
434/50434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (49) aircraft or ambient condition simulated electrically or indicated by instrument or alarm (50) takeoff or preparation therefor
434/51434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (49) aircraft or ambient condition simulated electrically or indicated by instrument or alarm (51) aircraft attitude (e.g., roll, etc.)
434/52434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (49) aircraft or ambient condition simulated electrically or indicated by instrument or alarm (52) ice formation or aircraft weight
434/53434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (49) aircraft or ambient condition simulated electrically or indicated by instrument or alarm (53) pressure
434/54434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (49) aircraft or ambient condition simulated electrically or indicated by instrument or alarm (54) propulsion means or accessory
434/55434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (55) tiltable or turnable ground trainer
434/56434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (55) tiltable or turnable ground trainer (56) with fan or simulated propeller
434/57434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (55) tiltable or turnable ground trainer (57) with means for stabilizing trainer when idle
434/58434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (55) tiltable or turnable ground trainer (58) by fluid actuated piston/cylinder ram
434/59434 education and demonstration/(29) vehicle operator instruction or testing (30) flight vehicle (59) simulation of flight generated force applied to aircraft occupant
434/60434 education and demonstration/(29) vehicle operator instruction or testing (60) sail-equipped vehicle
434/61434 education and demonstration/(29) vehicle operator instruction or testing (61) bicycle or motorcycle
434/62434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck
434/63434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (63) model viewed and maneuvered by trainee from point remote therefrom
434/64434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (64) driver's skill measured by time or vehicle travel distance
434/65434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (65) recordation of driver's performance
434/66434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (66) real vehicle used in instruction or testing
434/67434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (66) real vehicle used in instruction or testing (67) vehicle positioned on rollers, belt, or platform
434/68434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (66) real vehicle used in instruction or testing (68) obstacle or other means contacted by improperly driven vehicle
434/69434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (69) simulation of view from vehicle
434/70434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (69) simulation of view from vehicle (70) view simulating means located on belt or cylinder
434/71434 education and demonstration/(29) vehicle operator instruction or testing (62) automobile or truck (71) manipulation of gear shift lever or clutch pedal
434/72434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout
434/73434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (73) magnet included in display or demonstration
434/74434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (74) brick, tile, roofing, or siding
434/75434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (75) curtain or wall, ceiling, or floor cover
434/76434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (75) curtain or wall, ceiling, or floor cover (76) light, mirror, or image projector included in display or demonstration
434/77434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (75) curtain or wall, ceiling, or floor cover (77) roller-mounted belt or strip included in display or demonstration
434/78434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (75) curtain or wall, ceiling, or floor cover (78) plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith
434/79434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (75) curtain or wall, ceiling, or floor cover (79) building or room interior represented pictorially or by model
434/80434 education and demonstration/(72) architecture, interior decoration, or industrial plant layout (80) representation of furniture, bathroom or kitchen accessory, or cabinet placeable in different locations on representation of room interior
434/81434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration
434/82434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (82) sculpture or craft involving manual carving or shaping
434/83434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (83) shape defined by filament (e.g., string, etc.)
434/84434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (84) color application (e.g., painting, etc.)
434/85434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing
434/86434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (86) animal or human body model having movable parts
434/87434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (87) stencil
434/88434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (88) tracing
434/89434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (89) model support
434/90434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (90) grid included in drawing aid or scene viewer
434/91434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (91) perspective
434/92434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (85) drawing (92) orthogonal projection
434/93434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (93) flower arranging or landscaping
434/94434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (94) hair or wig styling
434/95434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (95) decorative sewing, needlework, weaving, or textile designing
434/96434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (96) design formed of identical or complementary elements
434/97434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (96) design formed of identical or complementary elements (97) strips
434/98434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display
434/99434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (99) personal appearance or wearing apparel
434/100434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (99) personal appearance or wearing apparel (100) cosmetic or nail polish
434/101434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (101) produced by spinning means (e.g., plural rotating color disks, etc.)
434/102434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (102) produced by superposed color filters
434/103434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (103) including mixing receptacle or holder for color material
434/104434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (104) including relatively rotatable elements (e.g., concentrically mounted color disks, etc.)
434/105434 education and demonstration/(81) visual art or craft, artistic adornment, or color training or demonstration (98) color display (105) automobile
434/106434 education and demonstration/(106) astrology
434/107434 education and demonstration/(107) business or economics
434/108434 education and demonstration/(107) business or economics (108) work schedule
434/109434 education and demonstration/(107) business or economics (109) record keeping
434/110434 education and demonstration/(107) business or economics (110) coin or currency identification or counterfeit detection
434/111434 education and demonstration/(111) celestial navigation
434/112434 education and demonstration/(112) communication aids for the handicapped
434/113434 education and demonstration/(112) communication aids for the handicapped (113) tactile reading aid (e.g., braille, etc.)
434/114434 education and demonstration/(112) communication aids for the handicapped (113) tactile reading aid (e.g., braille, etc.) (114) converting information to tactile output
434/115434 education and demonstration/(112) communication aids for the handicapped (113) tactile reading aid (e.g., braille, etc.) (115) braille writing slate
434/116434 education and demonstration/(112) communication aids for the handicapped (116) converting information to sound
434/117434 education and demonstration/(112) communication aids for the handicapped (117) writing guide for the blind
434/118434 education and demonstration/(118) computer logic, operation, or programming instruction
434/126434 education and demonstration/(126) fluid flow or wave motion
434/127434 education and demonstration/(127) food
434/128434 education and demonstration/(128) game, board or table type
434/129434 education and demonstration/(128) game, board or table type (129) using playing card
434/130434 education and demonstration/(130) geography
434/131434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor
434/132434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (132) relief globe
434/133434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (133) having diverse use (e.g., pencil box, etc.)
434/134434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (134) having magnet associated therewith
434/135434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (135) having plural planar or curved surfaces (e.g., flat or frustoconical surfaces, etc.)
434/136434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (136) rotated by mechanical drive
434/137434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (137) collapsible or arranged for convenient assembly, disassembly, or storage
434/138434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (137) collapsible or arranged for convenient assembly, disassembly, or storage (138) inflatable
434/139434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (139) with means representing vehicle moving relative to earth
434/140434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (139) with means representing vehicle moving relative to earth (140) space vehicle
434/141434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (141) with means indicating distance between points on earth
434/142434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (142) with means indicating time at different points on earth
434/143434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (143) with means demonstrating solar illumination of earth
434/144434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (144) with means demonstrating wind currents over earth
434/145434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (145) with internal light
434/146434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (146) with means to facilitate finding or reading indicia thereon
434/147434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (147) with map segment attachable thereto (e.g., continent, nation, etc.)
434/148434 education and demonstration/(130) geography (131) terrestrial globe or accessory therefor (148) with suspension type support
434/149434 education and demonstration/(130) geography (149) means indicating time at different points on earth
434/150434 education and demonstration/(130) geography (150) map or terrain model
434/151434 education and demonstration/(130) geography (150) map or terrain model (151) with model or sample of natural or man-made item associated therewith
434/152434 education and demonstration/(130) geography (150) map or terrain model (152) relief
434/153434 education and demonstration/(130) geography (150) map or terrain model (153) means for facilitating location of different points on map
434/154434 education and demonstration/(154) history or genealogy
434/155434 education and demonstration/(155) identification of person or handwriting analysis
434/156434 education and demonstration/(156) language
434/157434 education and demonstration/(156) language (157) foreign
434/158434 education and demonstration/(156) language (158) shorthand
434/159434 education and demonstration/(156) language (159) alphabet letter formation, recognition, or sequencing
434/160434 education and demonstration/(156) language (159) alphabet letter formation, recognition, or sequencing (160) letter formed by segments
434/161434 education and demonstration/(156) language (159) alphabet letter formation, recognition, or sequencing (161) letter displayed upon manipulation of mechanism
434/162434 education and demonstration/(156) language (162) writing or printing by hand
434/163434 education and demonstration/(156) language (162) writing or printing by hand (163) tracing
434/164434 education and demonstration/(156) language (162) writing or printing by hand (163) tracing (164) slotted or grooved path
434/165434 education and demonstration/(156) language (162) writing or printing by hand (165) writing sample included in teaching means
434/166434 education and demonstration/(156) language (162) writing or printing by hand (166) mechanical means for teaching proper position of body part while writing
434/167434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation
434/168434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (168) magnet included in teaching means
434/169434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (169) electrical component included in teaching means
434/170434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (170) color used in teaching means
434/171434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (171) letter or word bearing elements (e.g., cards, blocks, etc.) with interfitting surface configurations
434/172434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (172) letter-bearing elements (e.g., cards, blocks, etc.) selectively aligned to form word or sentence
434/173434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (172) letter-bearing elements (e.g., cards, blocks, etc.) selectively aligned to form word or sentence (173) letter-bearing belt or reel-mounted strip
434/174434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (172) letter-bearing elements (e.g., cards, blocks, etc.) selectively aligned to form word or sentence (174) rotatably mounted letter bearing element
434/175434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (172) letter-bearing elements (e.g., cards, blocks, etc.) selectively aligned to form word or sentence (175) letter-bearing elements slidable between different grooves
434/176434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (176) display of word or picture upon correct manipulation of teaching means
434/177434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (177) crossword puzzle aid
434/178434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading
434/179434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading (179) speed
434/180434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading (179) speed (180) projected image of reading matter
434/181434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading (179) speed (181) apertured mask moved past reading matter carrier
434/182434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading (179) speed (182) reading matter carrier moved past viewing position
434/183434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading (179) speed (183) pacer moved down reading matter carrier
434/184434 education and demonstration/(156) language (167) spelling, phonics, word recognition, or sentence formation (178) reading (184) directionality training (e.g., for dyslexics, etc.)
434/185434 education and demonstration/(156) language (185) speech
434/186434 education and demonstration/(186) magnetic or gyro compass
434/187434 education and demonstration/(187) measurement of length or volume
434/188434 education and demonstration/(188) mathematics
434/189434 education and demonstration/(188) mathematics (189) base conversion or use of base other than ten
434/190434 education and demonstration/(188) mathematics (190) magnet included in teaching means
434/191434 education and demonstration/(188) mathematics (191) arithmetic
434/192434 education and demonstration/(188) mathematics (191) arithmetic (192) chalkboard or equivalent means having readily erasable surface
434/193434 education and demonstration/(188) mathematics (191) arithmetic (193) manually manipulated numeral shaped elements
434/194434 education and demonstration/(188) mathematics (191) arithmetic (194) numeric value represented by weight placed on balance
434/195434 education and demonstration/(188) mathematics (191) arithmetic (195) manually manipulated elements having size proportional to numeric value
434/196434 education and demonstration/(188) mathematics (191) arithmetic (195) manually manipulated elements having size proportional to numeric value (196) fraction representing elements
434/197434 education and demonstration/(188) mathematics (191) arithmetic (197) indicia-bearing belt or reel-mounted strip
434/198434 education and demonstration/(188) mathematics (191) arithmetic (198) plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith
434/199434 education and demonstration/(188) mathematics (191) arithmetic (199) plaque slidable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith
434/200434 education and demonstration/(188) mathematics (191) arithmetic (200) manually manipulated pin or peg
434/201434 education and demonstration/(188) mathematics (191) arithmetic (201) electric component included in teaching means
434/202434 education and demonstration/(188) mathematics (191) arithmetic (202) keyboard or like manually manipulated array (e.g., slides, levers, etc.)
434/203434 education and demonstration/(188) mathematics (191) arithmetic (203) apertured elements threaded on elongate means (e.g., abacus, etc.)
434/204434 education and demonstration/(188) mathematics (191) arithmetic (203) apertured elements threaded on elongate means (e.g., abacus, etc.) (204) elements manually placed on or removed from elongate means during use
434/205434 education and demonstration/(188) mathematics (191) arithmetic (205) means having number of marks (e.g., dots, etc.) or associated physical units (e.g., sticks, indentations, etc.) corresponding to numeric value
434/206434 education and demonstration/(188) mathematics (191) arithmetic (206) rotatable wheel-shaped element (e.g., ring, disc, cylinder, etc.) having indicia on perimeter thereof
434/207434 education and demonstration/(188) mathematics (191) arithmetic (207) color used in teaching means
434/208434 education and demonstration/(188) mathematics (191) arithmetic (208) ball, block, or disk
434/209434 education and demonstration/(188) mathematics (191) arithmetic (209) division or multiplication
434/210434 education and demonstration/(188) mathematics (191) arithmetic (210) place value relative to decimal point
434/211434 education and demonstration/(188) mathematics (211) geometry, trigonometry, or physical mathematic model structure
434/212434 education and demonstration/(188) mathematics (211) geometry, trigonometry, or physical mathematic model structure (212) pythagorean theorem
434/213434 education and demonstration/(188) mathematics (211) geometry, trigonometry, or physical mathematic model structure (213) property of sphere or spheroid
434/214434 education and demonstration/(188) mathematics (211) geometry, trigonometry, or physical mathematic model structure (214) property of circle or ellipse
434/215434 education and demonstration/(188) mathematics (211) geometry, trigonometry, or physical mathematic model structure (215) demonstration means using relatively turnable elements
434/216434 education and demonstration/(188) mathematics (211) geometry, trigonometry, or physical mathematic model structure (216) demonstration means using filament (e.g., string, etc.) to define geometric shape
434/217434 education and demonstration/(217) meteorology
434/218434 education and demonstration/(218) nuclear energy or radioactive radiation detection or simulation
434/219434 education and demonstration/(219) occupation
434/220434 education and demonstration/(219) occupation (220) air traffic control
434/221434 education and demonstration/(219) occupation (221) audiometry
434/222434 education and demonstration/(219) occupation (222) code communication
434/223434 education and demonstration/(219) occupation (222) code communication (223) visual signalling
434/224434 education and demonstration/(219) occupation (224) electricity or electronics
434/225434 education and demonstration/(219) occupation (225) dairying, farming, ranching, or other occupation involving care of plants or animals
434/226434 education and demonstration/(219) occupation (226) fire fighting
434/227434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.)
434/228434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.) (228) means for selectively illuminating character on simulated keyboard
434/229434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.) (229) means for selectively rendering key operable or inoperable
434/230434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.) (230) means for selectively producing sound of character
434/231434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.) (231) practice keyboard having individually depressible keys
434/232434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.) (231) practice keyboard having individually depressible keys (232) with means to display character upon depression of key
434/233434 education and demonstration/(219) occupation (227) keyboard operation (e.g., typing, key punching, etc.) (233) means on hand or finger for indicating finger to be used
434/234434 education and demonstration/(219) occupation (234) soldering or welding
434/235434 education and demonstration/(235) parliamentary procedure
434/236434 education and demonstration/(236) psychology
434/237434 education and demonstration/(236) psychology (237) cooperation of plural pupils
434/238434 education and demonstration/(236) psychology (238) behavior or performance display (e.g., board for showing completed chores, etc.)
434/239434 education and demonstration/(239) radio navigation
434/240434 education and demonstration/(239) radio navigation (240) light sensor included in simulator of radio navigation equipment
434/241434 education and demonstration/(239) radio navigation (241) simulation of upwardly directed airfield or landing approach marker radio beam
434/242434 education and demonstration/(239) radio navigation (242) simulated radio signal generated by use of data storage means
434/243434 education and demonstration/(239) radio navigation (243) simulated bearing or position or vehicle relative to radio transmitter or directional beam indicated to trainee by instrument
434/244434 education and demonstration/(239) radio navigation (244) simulation of radio directional beam carrying morse code signal
434/245434 education and demonstration/(245) religion
434/246434 education and demonstration/(245) religion (246) rosary
434/247434 education and demonstration/(247) physical education
434/248434 education and demonstration/(247) physical education (248) basketball
434/249434 education and demonstration/(247) physical education (249) bowling
434/250434 education and demonstration/(247) physical education (250) dancing
434/251434 education and demonstration/(247) physical education (251) football, soccer, or rugby
434/252434 education and demonstration/(247) physical education (252) golf
434/253434 education and demonstration/(247) physical education (253) skiing
434/254434 education and demonstration/(247) physical education (254) swimming
434/255434 education and demonstration/(247) physical education (255) traversing ground (e.g., crawling, running, etc.)
434/256434 education and demonstration/(247) physical education (256) body model with articulated parts
434/257434 education and demonstration/(247) physical education (257) picture or image of body included in display or demonstration
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