IPC Subgroup
G04C 3/02 wherein movement is regulated by a pendulum
Introduced: September 1968
Last revised: January 2006
Full Title
Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means > wherein movement is regulated by a pendulum
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- ELECTROMECHANICAL CLOCKS OR WATCHES
2 direct subcodes
Child Classifications
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- G04C 3/027 using electromagnetic coupling between electric power source and pendulum
- G04C 3/033 using torsion pendulums; using conical pendulums