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PCE
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DIFF Subgroup
G04F 3/02

with mechanical driving mechanisms

Introduced: September 1968

Full Title

Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork > with mechanical driving mechanisms

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Child Classifications

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  • G04F 3/022 CPC only CPC only
  • G04F 3/025 CPC only CPC only
  • G04F 3/027 CPC only CPC only
  • G04F 3/04 Additional arrangements in connection with ordinary non-electric clocks for this purpose IPC+CPC Available in IPC and CPC