USPC Patent Classifications

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Class 352 optics: motion pictures
uspcdescription
352/1352 optics: motion pictures/(1) with sound accompaniment
352/2352 optics: motion pictures/(1) with sound accompaniment (2) cyclic motion pictures with sound (e.g., praxinoscopes
352/3352 optics: motion pictures/(1) with sound accompaniment (3) sound stages, methods and accessories
352/4352 optics: motion pictures/(1) with sound accompaniment (3) sound stages, methods and accessories (4) prompters
352/5352 optics: motion pictures/(1) with sound accompaniment (5) methods
352/6352 optics: motion pictures/(1) with sound accompaniment (6) selectively operable plural records, recorders or reproducers
352/7352 optics: motion pictures/(1) with sound accompaniment (6) selectively operable plural records, recorders or reproducers (7) with change-over control
352/8352 optics: motion pictures/(1) with sound accompaniment (6) selectively operable plural records, recorders or reproducers (8) plural sound or picture record selection
352/9352 optics: motion pictures/(1) with sound accompaniment (6) selectively operable plural records, recorders or reproducers (9) plural sound reproducers sequentially operable
352/10352 optics: motion pictures/(1) with sound accompaniment (6) selectively operable plural records, recorders or reproducers (10) plural sound transducers selectively operable
352/11352 optics: motion pictures/(1) with sound accompaniment (11) sound allocation
352/12352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing
352/13352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (13) manual control
352/14352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (14) loop control
352/15352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (15) sound record controls picture
352/16352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (15) sound record controls picture (16) control actuated by sound record
352/17352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (15) sound record controls picture (16) control actuated by sound record (17) control signal carried by sound record
352/18352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (15) sound record controls picture (18) by position of sound transducer of separate sound means
352/19352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (19) picture controls sound
352/20352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (19) picture controls sound (20) control signal carried by picture record
352/21352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (21) with independent speed regulation
352/22352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (22) with synchronous starting
352/23352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (23) with synchronizing indicator
352/24352 optics: motion pictures/(1) with sound accompaniment (12) picture and sound synchronizing (23) with synchronizing indicator (24) on picture and sound records
352/25352 optics: motion pictures/(1) with sound accompaniment (25) with picture and sound control systems
352/26352 optics: motion pictures/(1) with sound accompaniment (26) common picture and sound record carrier systems
352/27352 optics: motion pictures/(1) with sound accompaniment (26) common picture and sound record carrier systems (27) flexible strip type
352/28352 optics: motion pictures/(1) with sound accompaniment (26) common picture and sound record carrier systems (27) flexible strip type (28) common light source for picture and sound
352/29352 optics: motion pictures/(1) with sound accompaniment (26) common picture and sound record carrier systems (27) flexible strip type (29) spaced picture gate and sound transducers
352/30352 optics: motion pictures/(1) with sound accompaniment (26) common picture and sound record carrier systems (27) flexible strip type (29) spaced picture gate and sound transducers (30) with damping
352/31352 optics: motion pictures/(1) with sound accompaniment (31) separate picture and sound carrier systems
352/32352 optics: motion pictures/(1) with sound accompaniment (31) separate picture and sound carrier systems (32) picture strip and groove-type sound disc or cylinder
352/33352 optics: motion pictures/(1) with sound accompaniment (31) separate picture and sound carrier systems (32) picture strip and groove-type sound disc or cylinder (33) interconnecting drive permits relative position adjustment
352/34352 optics: motion pictures/(1) with sound accompaniment (34) housing and supports
352/35352 optics: motion pictures/(1) with sound accompaniment (34) housing and supports (35) with acoustic isolation
352/36352 optics: motion pictures/(1) with sound accompaniment (36) reproducer and screen arrangements
352/37352 optics: motion pictures/(1) with sound accompaniment (37) picture and sound recorder carries
352/38352 optics: motion pictures/(38) methods
352/39352 optics: motion pictures/(38) methods (39) applications (e.g., motion analysis, marksmanship training)
352/40352 optics: motion pictures/(38) methods (40) exhibiting
352/41352 optics: motion pictures/(38) methods (40) exhibiting (41) controlling projector illumination
352/42352 optics: motion pictures/(38) methods (40) exhibiting (41) controlling projector illumination (42) with color filtration
352/43352 optics: motion pictures/(38) methods (40) exhibiting (43) enhancing relief illusion
352/44352 optics: motion pictures/(38) methods (44) recording
352/45352 optics: motion pictures/(38) methods (44) recording (45) photographing with light filtration
352/46352 optics: motion pictures/(38) methods (44) recording (46) with plural exposure of a single film
352/47352 optics: motion pictures/(38) methods (44) recording (47) with projected picture component
352/48352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects
352/49352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects (49) illuminating the subject
352/50352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects (50) making a series of drawings (e.g., animation methods)
352/51352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects (50) making a series of drawings (e.g., animation methods) (51) using photographic guides
352/52352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects (50) making a series of drawings (e.g., animation methods) (52) with manipulation of drawings
352/53352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects (53) moving camera position
352/54352 optics: motion pictures/(38) methods (44) recording (48) with special scenery and staging effects (54) manipulating puppet or mannequins
352/55352 optics: motion pictures/(38) methods (44) recording (55) providing printed titles
352/56352 optics: motion pictures/(38) methods (56) carrier treating or working
352/57352 optics: motion pictures/(57) stereoscopic cameras and/or projectors
352/58352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (58) interlineated
352/59352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (59) plural film strip
352/60352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (60) simultaneous recording or reproducing left-right images
352/61352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (60) simultaneous recording or reproducing left-right images (61) with image separation by special projection screen
352/62352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (62) sequential recording or reproducing left-right images
352/63352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (62) sequential recording or reproducing left-right images (63) with image separation by synchronized viewer
352/64352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (62) sequential recording or reproducing left-right images (64) with reciprocating film stip carrier
352/65352 optics: motion pictures/(57) stereoscopic cameras and/or projectors (62) sequential recording or reproducing left-right images (65) with pre-objective reflecting system
352/66352 optics: motion pictures/(66) color cameras and/or projectors using monochrome film
352/67352 optics: motion pictures/(66) color cameras and/or projectors using monochrome film (67) simultaneously recorded or projected images
352/68352 optics: motion pictures/(68) recording or projecting picture image during change cycle of preceding picture
352/69352 optics: motion pictures/(69) panoramic picture type
352/70352 optics: motion pictures/(69) panoramic picture type (70) mosaic picture
352/71352 optics: motion pictures/(69) panoramic picture type (70) mosaic picture (71) with vignetting
352/72352 optics: motion pictures/(72) removable film strip magazine type
352/73352 optics: motion pictures/(72) removable film strip magazine type (73) spool or magazine selective
352/74352 optics: motion pictures/(72) removable film strip magazine type (74) with magazine ejecting
352/75352 optics: motion pictures/(72) removable film strip magazine type (75) with light trap or occlusion
352/76352 optics: motion pictures/(72) removable film strip magazine type (75) with light trap or occlusion (76) shutter type
352/77352 optics: motion pictures/(72) removable film strip magazine type (77) with focal plane indexing
352/78R352 optics: motion pictures/(72) removable film strip magazine type (78r) magazines
352/78C352 optics: motion pictures/(72) removable film strip magazine type (78r) magazines (78c) coded signals on magazines
352/79352 optics: motion pictures/(79) with plural picture sizes and types
352/80352 optics: motion pictures/(79) with plural picture sizes and types (80) plural film width
352/81352 optics: motion pictures/(81) interlineated picture type
352/82352 optics: motion pictures/(82) with pictures in transverse rows
352/83352 optics: motion pictures/(83) with pictures in plural longitudinal columns
352/84352 optics: motion pictures/(84) time compression or expansion (e.g., time lapse or high speed)
352/85352 optics: motion pictures/(85) special effects
352/86352 optics: motion pictures/(85) special effects (86) depth illusion
352/87352 optics: motion pictures/(85) special effects (87) animation
352/88352 optics: motion pictures/(85) special effects (88) sets
352/89352 optics: motion pictures/(85) special effects (88) sets (89) projected picture component
352/90352 optics: motion pictures/(85) special effects (90) titling devices
352/91R352 optics: motion pictures/(85) special effects (91r) transition effects (e.g., wipes and dissolves)
352/91C352 optics: motion pictures/(85) special effects (91r) transition effects (e.g., wipes and dissolves) (91c) in a camera
352/91S352 optics: motion pictures/(85) special effects (91r) transition effects (e.g., wipes and dissolves) (91c) in a camera (91s) film transport controlled
352/92352 optics: motion pictures/(92) with film carried control signals
352/93352 optics: motion pictures/(93) camera with plural fields of view
352/94352 optics: motion pictures/(94) camera with deflected field of view
352/95352 optics: motion pictures/(95) gun-type cameras and/or projectors
352/96352 optics: motion pictures/(96) opaque projectors
352/97352 optics: motion pictures/(97) with superimposed film strips
352/98352 optics: motion pictures/(98) individual picture plate type
352/99352 optics: motion pictures/(98) individual picture plate type (99) book leaf type (e.g., mutotropes)
352/100352 optics: motion pictures/(98) individual picture plate type (100) traveling observer
352/101352 optics: motion pictures/(101) picture drum type (e.g., aeotropes)
352/102352 optics: motion pictures/(102) picture disc type
352/103352 optics: motion pictures/(102) picture disc type (103) spiral picture arrangement
352/104352 optics: motion pictures/(104) cabinet-type projector
352/105352 optics: motion pictures/(105) optical rectifier type
352/106352 optics: motion pictures/(105) optical rectifier type (106) scanning reflectors and refractors
352/107352 optics: motion pictures/(105) optical rectifier type (107) rotating reflector disc
352/108352 optics: motion pictures/(105) optical rectifier type (108) rotating reflector drum
352/109352 optics: motion pictures/(105) optical rectifier type (109) reflector angularly displaced about fixed axis
352/110352 optics: motion pictures/(105) optical rectifier type (110) reflector displaced
352/111352 optics: motion pictures/(105) optical rectifier type (110) reflector displaced (111) plural reflectors
352/112352 optics: motion pictures/(105) optical rectifier type (110) reflector displaced (111) plural reflectors (112) with angular adjustment during displacement
352/113352 optics: motion pictures/(105) optical rectifier type (113) refractor
352/114352 optics: motion pictures/(105) optical rectifier type (113) refractor (114) plural projection lenses
352/115352 optics: motion pictures/(105) optical rectifier type (113) refractor (114) plural projection lenses (115) with rotary carrier
352/116352 optics: motion pictures/(105) optical rectifier type (113) refractor (116) plural refractor elements with rotary carrier
352/117352 optics: motion pictures/(105) optical rectifier type (113) refractor (116) plural refractor elements with rotary carrier (117) lenticular drum
352/118352 optics: motion pictures/(105) optical rectifier type (113) refractor (116) plural refractor elements with rotary carrier (118) lenticular disc
352/119352 optics: motion pictures/(105) optical rectifier type (113) refractor (119) rotating plano parallel prism
352/120352 optics: motion pictures/(105) optical rectifier type (113) refractor (119) rotating plano parallel prism (120) plate type
352/121352 optics: motion pictures/(121) sequentially operated still cameras
352/122352 optics: motion pictures/(121) sequentially operated still cameras (122) with film severing or perforating means
352/123352 optics: motion pictures/(123) exhibitors with plural film strip selection
352/124352 optics: motion pictures/(124) with rewinding of film strips
352/125352 optics: motion pictures/(124) with rewinding of film strips (125) during projection of another film strip
352/126352 optics: motion pictures/(126) with nonrewinding film strip (e.g., endless film type)
352/127352 optics: motion pictures/(126) with nonrewinding film strip (e.g., endless film type) (127) zigzag or sinuous film support
352/128352 optics: motion pictures/(126) with nonrewinding film strip (e.g., endless film type) (128) coil type
352/129352 optics: motion pictures/(129) film strip viewing apparatus
352/130352 optics: motion pictures/(130) with film treating or working
352/131352 optics: motion pictures/(131) combined with diverse-type device
352/132352 optics: motion pictures/(131) combined with diverse-type device (132) with manned vehicle
352/133352 optics: motion pictures/(133) plural
352/134352 optics: motion pictures/(133) plural (134) projectors with single light source
352/135352 optics: motion pictures/(133) plural (135) projectors with alternately operable shutters
352/136352 optics: motion pictures/(136) covertible
352/137352 optics: motion pictures/(136) covertible (137) still-motion camera
352/138352 optics: motion pictures/(136) covertible (138) camera-projector
352/139352 optics: motion pictures/(139) with camera parts displaceable for focusing
352/140352 optics: motion pictures/(140) with focus control
352/141352 optics: motion pictures/(141) with automatic diaphragm control
352/142352 optics: motion pictures/(142) with selection of plural lenses
352/143352 optics: motion pictures/(143) with film strip fire prevention or isolation
352/144352 optics: motion pictures/(143) with film strip fire prevention or isolation (144) fire trap
352/145352 optics: motion pictures/(143) with film strip fire prevention or isolation (144) fire trap (145) with film severing
352/146352 optics: motion pictures/(143) with film strip fire prevention or isolation (146) film cooling
352/147352 optics: motion pictures/(143) with film strip fire prevention or isolation (146) film cooling (147) single frame projection
352/148352 optics: motion pictures/(143) with film strip fire prevention or isolation (146) film cooling (148) by filters
352/149352 optics: motion pictures/(143) with film strip fire prevention or isolation (149) auxiliary fire shutter
352/150352 optics: motion pictures/(143) with film strip fire prevention or isolation (149) auxiliary fire shutter (150) film tension responsive
352/151352 optics: motion pictures/(143) with film strip fire prevention or isolation (149) auxiliary fire shutter (150) film tension responsive (151) slack loop actuation
352/152352 optics: motion pictures/(143) with film strip fire prevention or isolation (149) auxiliary fire shutter (152) feed speed responsive
352/153352 optics: motion pictures/(143) with film strip fire prevention or isolation (149) auxiliary fire shutter (152) feed speed responsive (153) friction drive actuation
352/154352 optics: motion pictures/(143) with film strip fire prevention or isolation (149) auxiliary fire shutter (152) feed speed responsive (154) centrifugal actuation
352/155352 optics: motion pictures/(143) with film strip fire prevention or isolation (155) electrical circuit interrupted by film sensing means
352/156352 optics: motion pictures/(156) with concentric reel
352/157352 optics: motion pictures/(157) with threading structure
352/158352 optics: motion pictures/(157) with threading structure (158) self-feeding type
352/159352 optics: motion pictures/(159) with loop forming
352/160352 optics: motion pictures/(160) with framing and/or travel ghost elimination
352/161352 optics: motion pictures/(160) with framing and/or travel ghost elimination (161) by alteration of film path length
352/162352 optics: motion pictures/(160) with framing and/or travel ghost elimination (162) by relative positioning of gate and drive
352/163352 optics: motion pictures/(160) with framing and/or travel ghost elimination (163) by rotation of film drive sprocket
352/164352 optics: motion pictures/(160) with framing and/or travel ghost elimination (163) by rotation of film drive sprocket (164) with shutter synchronization
352/165352 optics: motion pictures/(160) with framing and/or travel ghost elimination (165) shutter adjustments
352/166352 optics: motion pictures/(166) camera and/or projector drive mechanisms
352/167352 optics: motion pictures/(166) camera and/or projector drive mechanisms (167) with illumination control responsive to drive speed
352/168352 optics: motion pictures/(166) camera and/or projector drive mechanisms (168) having plural or interchangeable drives
352/169352 optics: motion pictures/(166) camera and/or projector drive mechanisms (169) with single frame operation
352/170352 optics: motion pictures/(166) camera and/or projector drive mechanisms (170) with indicating means
352/171352 optics: motion pictures/(166) camera and/or projector drive mechanisms (170) with indicating means (171) visible in viewfinder
352/172352 optics: motion pictures/(166) camera and/or projector drive mechanisms (170) with indicating means (172) film footage
352/173352 optics: motion pictures/(166) camera and/or projector drive mechanisms (173) with reverse feed
352/174352 optics: motion pictures/(166) camera and/or projector drive mechanisms (174) with starting and/or stopping means
352/175352 optics: motion pictures/(166) camera and/or projector drive mechanisms (174) with starting and/or stopping means (175) having timed run
352/176352 optics: motion pictures/(166) camera and/or projector drive mechanisms (174) with starting and/or stopping means (176) responsive to camera or projector elements
352/177352 optics: motion pictures/(166) camera and/or projector drive mechanisms (174) with starting and/or stopping means (176) responsive to camera or projector elements (177) shutter responsive
352/178352 optics: motion pictures/(166) camera and/or projector drive mechanisms (174) with starting and/or stopping means (178) having manual controls
352/179352 optics: motion pictures/(166) camera and/or projector drive mechanisms (174) with starting and/or stopping means (178) having manual controls (179) remotely operated
352/180352 optics: motion pictures/(166) camera and/or projector drive mechanisms (180) with speed regulation or selection
352/181352 optics: motion pictures/(166) camera and/or projector drive mechanisms (180) with speed regulation or selection (181) by escapement
352/182352 optics: motion pictures/(166) camera and/or projector drive mechanisms (180) with speed regulation or selection (182) by braking
352/183352 optics: motion pictures/(166) camera and/or projector drive mechanisms (183) with feeding belt film engagement
352/184352 optics: motion pictures/(166) camera and/or projector drive mechanisms (184) with continuous feed and intermittent film arresting means
352/185352 optics: motion pictures/(166) camera and/or projector drive mechanisms (185) with film beater
352/186352 optics: motion pictures/(166) camera and/or projector drive mechanisms (186) with reciprocating continuously driven carrier engaging sprocket
352/187352 optics: motion pictures/(166) camera and/or projector drive mechanisms (187) with intermittently driven carrier-engaging sprocket
352/188352 optics: motion pictures/(166) camera and/or projector drive mechanisms (187) with intermittently driven carrier-engaging sprocket (188) cam actuated
352/189352 optics: motion pictures/(166) camera and/or projector drive mechanisms (187) with intermittently driven carrier-engaging sprocket (189) geneva gear actuated
352/190352 optics: motion pictures/(166) camera and/or projector drive mechanisms (187) with intermittently driven carrier-engaging sprocket (190) special type gearing
352/191352 optics: motion pictures/(166) camera and/or projector drive mechanisms (191) with film engaging claws reciprocally driven to engage film
352/192352 optics: motion pictures/(166) camera and/or projector drive mechanisms (191) with film engaging claws reciprocally driven to engage film (192) crank pin actuated
352/193352 optics: motion pictures/(166) camera and/or projector drive mechanisms (191) with film engaging claws reciprocally driven to engage film (192) crank pin actuated (193) with pivoted link or arcuate slot guide
352/194352 optics: motion pictures/(166) camera and/or projector drive mechanisms (191) with film engaging claws reciprocally driven to engage film (194) cam actuated
352/195352 optics: motion pictures/(166) camera and/or projector drive mechanisms (191) with film engaging claws reciprocally driven to engage film (194) cam actuated (195) scroll type
352/196352 optics: motion pictures/(166) camera and/or projector drive mechanisms (191) with film engaging claws reciprocally driven to engage film (194) cam actuated (196) with single fixed pivot
352/197352 optics: motion pictures/(166) camera and/or projector drive mechanisms (197) with supporting structure
352/198352 optics: motion pictures/(198) projection light sources
352/199352 optics: motion pictures/(198) projection light sources (199) synchronized with shutter
352/200352 optics: motion pictures/(198) projection light sources (200) intermittent light
352/201352 optics: motion pictures/(198) projection light sources (201) flicker reduction by auxiliary illumination
352/202352 optics: motion pictures/(198) projection light sources (202) with ventilation and cooling
352/203352 optics: motion pictures/(198) projection light sources (203) projector illuminators
352/204352 optics: motion pictures/(204) shutters
352/205352 optics: motion pictures/(204) shutters (205) with plural light paths
352/206352 optics: motion pictures/(204) shutters (205) with plural light paths (206) reflex view type
352/207352 optics: motion pictures/(204) shutters (207) rectilinearly movable
352/208352 optics: motion pictures/(204) shutters (208) rotary
352/209352 optics: motion pictures/(204) shutters (208) rotary (209) with speed-adjusted aperture size
352/210352 optics: motion pictures/(204) shutters (208) rotary (210) with apertured or radially deviating blade
352/211352 optics: motion pictures/(204) shutters (208) rotary (211) ventilating
352/212352 optics: motion pictures/(204) shutters (208) rotary (212) with light modifying blades
352/213352 optics: motion pictures/(204) shutters (208) rotary (212) with light modifying blades (213) color
352/214352 optics: motion pictures/(204) shutters (208) rotary (214) with axially spaced independently driven blades
352/215352 optics: motion pictures/(204) shutters (208) rotary (214) with axially spaced independently driven blades (215) counter rotatable
352/216352 optics: motion pictures/(204) shutters (208) rotary (214) with axially spaced independently driven blades (216) variable aperture size
352/217352 optics: motion pictures/(204) shutters (208) rotary (214) with axially spaced independently driven blades (216) variable aperture size (217) dissolve
352/218352 optics: motion pictures/(204) shutters (208) rotary (218) with plural blades on spaced axis
352/219352 optics: motion pictures/(204) shutters (208) rotary (219) single drive (e.g., disc type)
352/220352 optics: motion pictures/(204) shutters (208) rotary (219) single drive (e.g., disc type) (220) variable number of blades
352/221352 optics: motion pictures/(221) gates
352/222352 optics: motion pictures/(221) gates (222) fluid pressure type
352/223352 optics: motion pictures/(221) gates (223) with pressure rollers
352/224352 optics: motion pictures/(221) gates (224) with edge guide
352/225352 optics: motion pictures/(221) gates (225) with reciprocating pressure plate
352/226352 optics: motion pictures/(221) gates (226) with removable aperture plate
352/227352 optics: motion pictures/(221) gates (227) with pressure plate tension control
352/228352 optics: motion pictures/(221) gates (228) with curved film plane
352/229352 optics: motion pictures/(221) gates (229) with gate moving and/or holding structure
352/230352 optics: motion pictures/(221) gates (229) with gate moving and/or holding structure (230) closure-operated
352/231352 optics: motion pictures/(221) gates (231) with lens mounting
352/232352 optics: motion pictures/(232) picture carriers
352/233352 optics: motion pictures/(232) picture carriers (233) strip type
352/234352 optics: motion pictures/(232) picture carriers (233) strip type (234) color
352/235352 optics: motion pictures/(232) picture carriers (233) strip type (235) with leader
352/236352 optics: motion pictures/(232) picture carriers (233) strip type (236) with film-carried indicia
352/237352 optics: motion pictures/(232) picture carriers (233) strip type (237) reinforced
352/238352 optics: motion pictures/(232) picture carriers (233) strip type (238) abrasion resistant
352/239352 optics: motion pictures/(232) picture carriers (233) strip type (239) with particular format (e.g., stereoscopic)
352/240352 optics: motion pictures/(232) picture carriers (233) strip type (240) with pictorial matter
352/241352 optics: motion pictures/(232) picture carriers (233) strip type (241) perforation arrangement
352/242352 optics: motion pictures/(242) with housing
352/243352 optics: motion pictures/(243) with support
352/244352 optics: motion pictures/(244) miscellaneous

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