TREA

by using devices similar to slave-clocks

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Industry

  • 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

Patents Applicationslast 30 patents