Driving mechanisms

Introduced: September 1968

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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G04B 1/02 with driving weight IPC+CPC Available in IPC and CPC
G04B 1/10 with mainspring +1 CPC IPC+CPC Available in IPC and CPC
G04B 1/24 with both mainsprings and driving weights IPC+CPC Available in IPC and CPC
G04B 1/26 driven by liquids or gases; Liquid or gaseous drives for mechanically-controlled secondary clocks +1 CPC IPC+CPC Available in IPC and CPC