| 968 / | HD | HOROLOGY |
| 23 | DD | NORMAL WINDING OF CLOCKWORKS BY HAND OR MECHANICALLY; WINDING UP SEVERAL MAINSPRINGS OR DRIVING WEIGHTS SIMULTANEOUSLY (see note attached to this subclass) {10} |
| 30 | DD | .~ Rigidly mounted keys, knob, or crowns (jointed winding stem subclass 322) [G04B 3/04] {5} |
| 31 | | .~.~ Construction of crowns for rotating movement; connection with the winding stem; winding stems [G04B 3/04B] |