the pendulum controlling contacts and mechanically driving the gear-train

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Industry

CPC
G04C3/0271

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Parent Industries

GPHYSICS G04Horology G04CELECTROMECHANICAL CLOCKS OR WATCHES G04C3/00Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means

Current Industry

G04C3/0271the pendulum controlling contacts and mechanically driving the gear-train

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Patents Grantslast 30 patents

Information Patent Grant
1411243
- Patent number 1,411,243
- Issue date Mar 28, 1922
- G04 - HOROLOGY