Description: 968 horology / 968 horology/(139) indicating by visual means (by electric lamps subclass 576; indicating by acoustical means mechanically subclass 217, electrically subclass 580; acoustic signals at preselected times mechanically subclass 229, electrically subclass 580; optical time signals at preselected times mechanically subclass 244, electrically subclass 577; continuous time indication by electric means subclass 564; visible signalling arrangements g08b 5/00) [g04b 19/00] (170) clocks or watches with data indicators, e.g., calendar clocks or watches, etc.; clockwork calendars (indication by discs with numbers, in general subclass 162; link and gear work subclass 85; combination of the clockwork with a settable calendar subclass 398; calendars in general b42d 5/04, g09d 3/00; electrical counters and counting circuits h03k; clockwork for advertising g09f 23/16; devices for time computing where an unknown may be determined g02b) [g04b 19/24] (171) with one or more indicating devices in disc shape, construction production and support of the date indicating disc, also its fixation in a determined position [g04b 19/24b] (177) the date indicating device being paced or freed mechanically by a clockwork movement [g04b 19/24b7]
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