Mechanisms for stabilising frequency

Introduced: September 1968

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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G04B 17/005 CPC only CPC only
G04B 17/02 Oscillators acting by gravity, e.g. pendulum swinging in a plane +1 CPC IPC+CPC Available in IPC and CPC
G04B 17/04 Oscillators acting by spring tension +1 CPC IPC+CPC Available in IPC and CPC
G04B 17/20 Compensation of mechanisms for stabilising frequency IPC+CPC Available in IPC and CPC
G04B 17/30 Rotating governors, e.g. centrifugal governors, fan governors (for striking mechanism G04B21/06 ) IPC+CPC Available in IPC and CPC
G04B 17/32 Component parts or constructional details, e.g. collet, stud +1 CPC IPC+CPC Available in IPC and CPC