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using torsion pendulums using conical pendulums

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  • CPC
  • G04C3/033
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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

G04C3/033using torsion pendulums using conical pendulums
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Patents Grantslast 30 patents

  • Information Patent Grant

    Friction coupling for clockworks
    • Patent number 4,737,943
    • Issue date Apr 12, 1988
    • Emil Schmeckenbecher Uhrenfabrik
    • Peter Kienberger
    • G04 - HOROLOGY
  • Information Patent Grant

    Clock with rotary pendulum
    • Patent number 4,308,606
    • Issue date Dec 29, 1981
    • Kundo - Kieninger & Obergfell
    • Wolfgang Fehrenbacher
    • G04 - HOROLOGY
  • Information Patent Grant

    Electromechanical clock
    • Patent number 3,990,226
    • Issue date Nov 9, 1976
    • Kieninger & Obergfell Fabrik fur technische Laufwerke und Apparate
    • Wolfgang Fehrenbacher
    • G04 - HOROLOGY
  • Information Patent Grant

    3616639
    • Patent number 3,616,639
    • Issue date Nov 2, 1971
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3515915
    • Patent number 3,515,915
    • Issue date Jun 2, 1970
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    3508437
    • Patent number 3,508,437
    • Issue date Apr 28, 1970
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3379615
    • Patent number 3,379,615
    • Issue date Apr 23, 1968
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    2722097
    • Patent number 2,722,097
    • Issue date Nov 1, 1955
    • G04 - HOROLOGY
  • Information Patent Grant

    2625787
    • Patent number 2,625,787
    • Issue date Jan 20, 1953
    • G04 - HOROLOGY
  • Information Patent Grant

    1541138
    • Patent number 1,541,138
    • Issue date Jun 9, 1925
    • G04 - HOROLOGY
  • Information Patent Grant

    1325862
    • Patent number 1,325,862
    • Issue date Dec 23, 1919
    • G04 - HOROLOGY
  • Information Patent Grant

    754397
    • Patent number 754,397
    • Issue date Mar 8, 1904
    • G04 - HOROLOGY
  • Information Patent Grant

    652875
    • Patent number 652,875
    • Issue date Jul 3, 1900
    • G04 - HOROLOGY