| 968 / | HD | HOROLOGY |
| 73 | DD | CLICK DEVICES; STOP CLICKS; CLUTCHES (mechanisms for winding up by hand subclass 23; automatic winding up subclass 40;) [G04B 11/00] {4} |
| 83 | | .~ Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices) [G04B 11/00F] {1} |
| 84 | DD | .~.~> With friction members, e.g., click spring, etc. [G04B 11/00F4] |