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PCE
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DIFF Subgroup
G04B 18/06

by setting the collet or the stud of a hairspring

Introduced: January 1980

Full Title

Mechanisms for setting frequency > Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat > by setting the collet or the stud of a hairspring

No child classifications to compare. This is a leaf node in both IPC and CPC.