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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7/00
Measuring, counting, calibrating, testing or regulating apparatus
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G04D7/12
Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
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G04D7/1257
wherein further adjustment devices are present
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G04D7/1271
for the control mechanism only (from outside the clockwork)
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G04D7/1278
whereby the adjustment device works on the compass
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