| 968 / | HD | HOROLOGY |
|
| 446 |  | ELECTROMECHANICAL CLOCKS OR WATCHES INDEPENDENT OF OTHER TIMEPIECES AND IN WHICH THE MOVEMENT IS MAINTAINED BY ELECTRIC MEANS (synchronization subclass 506) [G04C 3/00] {8} |
| 447 | DD | .~> Electromechanical switches for setting or display [G04C 3/00K] {4} |
| 452 | DD | .~> Mounting, assembling of components [G04C 3/00M] |
| 453 | DD | .~> Wherein movement is regulated by a pendulum [G04C 3/02] {5} |
| 466 | DD | .~> Wherein movement is regulated by a balance (construction thereof subclass 110) [G04C 3/04] {2} |
| 480 | DD | .~> Wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g., by a tuning fork, e.g., electrostatically, etc. [G04C 3/08] {2} |
| 490 | DD | .~> Incorporating a stepping motor (subclasses 302 to 488 take precedence) generating timing pulses subclasses 817 and 901; setting subclass 906; synchronization subclass 920; generating commutating pulses in masterclocks subclasses 525 and 541; slave clocks actuated intermittently by electromechanical step-advancing mechanisms subclass 548; control circuits for stepping motors in general H02P 8/00) [G04C 3/14] {2} |
| 493 | DD | .~> Incorporating an electrodynamic continuously rotating motor (subclasses 453 and 488 take precedence; clocks driven by synchronous motors subclass 553) (apparatus which can be set and started to measure off predetermined or adjustable fixed time intervals with electric driving means, e.g., incorporating clocks, etc., subclasses 815 and 816; electromechanical stopwatches subclass 837) [G04C 3/16] {1} |
| 495 | DD | .~> Incorporating electrothermal or electro-pneumatic driving means [G04C 3/18] |