by using devices similar to slave-clocks

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CPC
G04C13/0418

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Parent Industries

GPHYSICS G04Horology G04CELECTROMECHANICAL CLOCKS OR WATCHES G04C13/00Driving mechanisms for clocks by master-clocks

Current Industry

G04C13/0418by using devices similar to slave-clocks

Industries

Patents Grantslast 30 patents

Information Patent Grant
1945989
- Patent number 1,945,989
- Issue date Feb 6, 1934
- G04 - HOROLOGY