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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3/00
Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
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G04B3/04
Rigidly-mounted keys, knobs or crowns
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