Patent classifications
G
PHYSICS
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G04
HOROLOGY
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G04C
ELECTROMECHANICAL CLOCKS OR WATCHES
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23/00
Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
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G04C23/14
Mechanisms continuously running to relate the operation(s) to the time of day
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G04C23/18
for operating one device at a number of different times
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