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  • CPC
  • G04C21/08
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Parent Industries

GPHYSICS G04Horology G04CELECTROMECHANICAL CLOCKS OR WATCHES G04C21/00Producing acoustic time signals by electrical means

Current Industry

G04C21/08with snail
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Time striking device for timepiece
    • Patent number 4,247,933
    • Issue date Jan 27, 1981
    • Rhythm Watch Company Limited
    • Norihiko Nakamura
    • G04 - HOROLOGY
  • Information Patent Grant

    Chime clock with minute hand shaft rotatable in both directions
    • Patent number 4,073,130
    • Issue date Feb 14, 1978
    • Spartus Corporation
    • Christian M. J. Jauch
    • G04 - HOROLOGY
  • Information Patent Grant

    Clock with striking mechanism
    • Patent number 4,036,004
    • Issue date Jul 19, 1977
    • Spartus Corporation
    • Christian M. J. Jauch
    • G04 - HOROLOGY
  • Information Patent Grant

    3520126
    • Patent number 3,520,126
    • Issue date Jul 14, 1970
    • G04 - HOROLOGY
  • Information Patent Grant

    3154911
    • Patent number 3,154,911
    • Issue date Nov 3, 1964
    • G04 - HOROLOGY
  • Information Patent Grant

    2851850
    • Patent number 2,851,850
    • Issue date Sep 16, 1958
    • G04 - HOROLOGY
  • Information Patent Grant

    2779151
    • Patent number 2,779,151
    • Issue date Jan 29, 1957
    • G04 - HOROLOGY
  • Information Patent Grant

    2723526
    • Patent number 2,723,526
    • Issue date Nov 15, 1955
    • G04 - HOROLOGY
  • Information Patent Grant

    2288933
    • Patent number 2,288,933
    • Issue date Jul 7, 1942
    • G04 - HOROLOGY
  • Information Patent Grant

    2209297
    • Patent number 2,209,297
    • Issue date Jul 23, 1940
    • G04 - HOROLOGY
  • Information Patent Grant

    2169647
    • Patent number 2,169,647
    • Issue date Aug 15, 1939
    • G04 - HOROLOGY
  • Information Patent Grant

    2127635
    • Patent number 2,127,635
    • Issue date Aug 23, 1938
    • G04 - HOROLOGY
  • Information Patent Grant

    2077755
    • Patent number 2,077,755
    • Issue date Apr 20, 1937
    • G04 - HOROLOGY
  • Information Patent Grant

    2058609
    • Patent number 2,058,609
    • Issue date Oct 27, 1936
    • G04 - HOROLOGY
  • Information Patent Grant

    2038965
    • Patent number 2,038,965
    • Issue date Apr 28, 1936
    • G04 - HOROLOGY
  • Information Patent Grant

    2014934
    • Patent number 2,014,934
    • Issue date Sep 17, 1935
    • G04 - HOROLOGY
  • Information Patent Grant

    1968932
    • Patent number 1,968,932
    • Issue date Aug 7, 1934
    • G04 - HOROLOGY
  • Information Patent Grant

    1965141
    • Patent number 1,965,141
    • Issue date Jul 3, 1934
    • G04 - HOROLOGY
  • Information Patent Grant

    1872377
    • Patent number 1,872,377
    • Issue date Aug 16, 1932
    • G04 - HOROLOGY
  • Information Patent Grant

    1789044
    • Patent number 1,789,044
    • Issue date Jan 13, 1931
    • G04 - HOROLOGY
  • Information Patent Grant

    1666351
    • Patent number 1,666,351
    • Issue date Apr 17, 1928
    • G04 - HOROLOGY
  • Information Patent Grant

    1513487
    • Patent number 1,513,487
    • Issue date Oct 28, 1924
    • G04 - HOROLOGY
  • Information Patent Grant

    1422590
    • Patent number 1,422,590
    • Issue date Jul 11, 1922
    • G04 - HOROLOGY
  • Information Patent Grant

    1417620
    • Patent number 1,417,620
    • Issue date May 30, 1922
    • G04 - HOROLOGY
  • Information Patent Grant

    1053722
    • Patent number 1,053,722
    • Issue date Feb 18, 1913
    • G04 - HOROLOGY
  • Information Patent Grant

    788704
    • Patent number 788,704
    • Issue date May 2, 1905
    • G04 - HOROLOGY
  • Information Patent Grant

    768421
    • Patent number 768,421
    • Issue date Aug 23, 1904
    • G04 - HOROLOGY
  • Information Patent Grant

    749495
    • Patent number 749,495
    • Issue date Jan 12, 1904
    • G04 - HOROLOGY
  • Information Patent Grant

    734366
    • Patent number 734,366
    • Issue date Jul 21, 1903
    • G04 - HOROLOGY
  • Information Patent Grant

    594379
    • Patent number 594,379
    • Issue date Nov 30, 1897
    • G04 - HOROLOGY