Patent classifications
G
PHYSICS
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G04
HOROLOGY
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G04D
APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
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3/00
Watchmakers' or watch-repairers' machines or tools for working materials
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G04D3/0002
for mechanical working other than with a lathe
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G04D3/0035
for components of the regulating mechanism
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G04D3/0041
for coil-springs
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