Patent classifications
G
PHYSICS
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G04
HOROLOGY
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G04B
MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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18/00
Mechanisms for setting frequency
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G04B18/04
Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
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G04B18/06
by setting the collet or the stud of a hairspring
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