| 968 / | HD | HOROLOGY |
|
| 217 | DD | INDICATING BY ACOUSTIC MEANS (at preselected times subclass 229; by electroacoustic means or electroacoustic time indicating subclass 582; time indicating by means other than acoustically, or combined means subclass 243; time indicating by visual means subclass 139; acoustic signalling arrangements G08B 3/00) [G04B 21/00] {2} |
| 219 |  | .~ Regular striking mechanisms giving the full hour, half hour, or quarter hour [G04B 21/02] {8} |
| 220 | DD | .~.~> With saw mechanism [G04B 21/02B] {1} |
| 222 | DD | .~.~> With locking wheel [G04B 21/02C] |
| 223 | DD | .~.~> Hour wheels; racks or rakes; snails or similar control mechanisms [G04B 21/04] |
| 224 | DD | .~.~> Details of striking mechanisms, e.g., hammer, fan governor, etc. (escapements in general subclass 95; mechanisms for stabilizing frequency subclass 103; resistance regulators G05D 13/00; mechanical toys A63H) [G04B 21/06] |
| 225 | DD | .~.~> Sounding bodies; whistles; musical apparatus (with electroacoustical transmitters subclass 580; sounding arrangements in alarm clocks subclass 237; cases with arrangements for enhancing sound production subclass 303; carillons and sounding boards G10F 1/08, 1/10, G10D 13/08) [G04B 21/08] |
| 226 | DD | .~.~> Releasing or locking the regular stroke, e.g., for silence during the night, etc. [G04B 21/10] |
| 227 | DD | .~.~> Reiterating watches or clocks [G04B 21/12] |
| 228 | DD | .~.~> Winding up the striking mechanism by the clockwork; winding up the clockwork by the striking mechanism; winding up by hand or mechanically subclass 23) [G04B 21/14] |