| 968 / | HD | HOROLOGY |
|
| 139 | DD | 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] {10} |
| 170 | DD | .~ 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] {5} |
| 201 | DD | .~.~ Different kinds of date indicating mechanism, e.g., with discs and drums, or drums, and bands, etc. [G04B 19/24G] {2} |
| 203 |  | .~.~.~ Date indicating devices driven or freed mechanically by a clockwork [G04B 19/24G7] {3} |
| 204 | DD | .~.~.~.~> The indicating devices are driven stepwise by the clockwork [G04B 19/24G7D] |
| 205 | DD | .~.~.~.~> The indicating devices are driven by successive steps by means of a charged energy source and freed at a determined moment by the clockwork [G04B 19/24G7F] |
| 206 | DD | .~.~.~.~> The indicating devices are driven by their own energy source which is freed at regular intervals [G04B 19/24G7G] |