| 968 / | HD | HOROLOGY |
| 605 | DD | CLOCKS WITH ATTACHED OR BUILT-IN MEANS OPERATING ANY DEVICE AT PRESELECTED TIMES OR AFTER PRESELECTED TIME INTERVALS (if restricted to producing acoustic time signals by electrical means subclass 580; mechanical alarm clocks subclass 231; apparatus which can be set and started to measure off predetermined intervals subclass 815; time or time-program switches which automatically terminate their operation after the program is completed H01H 43/00) [G04C 23/00] {3} |
| 612 | DD | .~ Mechanisms continuously running to relate the operation(s) to the time of day [G04C 23/14] {4} |
| 618 | DD | .~.~ For operating a number of devices at different times [G04C 23/26] {2} |
| 619 | | .~.~.~ With contacts operated, or formed, by clock hands or elements of similar form [G04C 23/28] |