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PCE
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DIFF Subgroup
G04C 13/10

by electromechanical step-advancing mechanisms

Introduced: September 1968

Full Title

Driving mechanisms for clocks by primary clocks > Secondary clocks actuated intermittently > by electromechanical step-advancing mechanisms

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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  • G04C 13/105 CPC only CPC only
  • G04C 13/11 with rotating armature since 1980 IPC+CPC Available in IPC and CPC