| 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} |
| 147 | DD | .~ Dials (for time-pieces without clockwork subclass 416; moving discs subclass 162; illuminated dials or hands subclass 213) [G04B 19/06] {8} |
| 158 | DD | .~.~ Shiftable dials, e.g., indicating alternately from 1 to 12 and from 13 to 24, etc. (dials with a scale other than the normal 12 hour scale subclass 151) [G04B 19/16] {2} |
| 159 | | .~.~.~ Numbers which are visible alternately from 1 to 12 and from 13 to 24 on the same dial [G04B 19/16B] |