TREA

Signal repeating devices

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Industry

  • CPC
  • G04C21/36
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Parent Industries

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

Current Industry

G04C21/36Signal repeating devices
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Information processing apparatus, information to be browsed registr...
    • Patent number 8,830,796
    • Issue date Sep 9, 2014
    • NEC Biglobe, Ltd.
    • Takuya Suzusho
    • G04 - HOROLOGY
  • Information Patent Grant

    Information communication terminal with acceleration sensor
    • Patent number 7,924,656
    • Issue date Apr 12, 2011
    • NEC Corporation
    • Yukiko Yoshino
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Alarm stop device for a timepiece
    • Patent number 4,799,204
    • Issue date Jan 17, 1989
    • Seikosha Co., Ltd.
    • Seiya Kitaoka
    • G04 - HOROLOGY
  • Information Patent Grant

    Minute-interval alarming device for a clock or the like
    • Patent number 3,996,734
    • Issue date Dec 14, 1976
    • Seiko Koki Kabushiki Kaisha
    • Kiyoshi Kitai
    • G04 - HOROLOGY
  • Information Patent Grant

    3854104
    • Patent number 3,854,104
    • Issue date Dec 10, 1974
    • G04 - HOROLOGY
  • Information Patent Grant

    3851458
    • Patent number 3,851,458
    • Issue date Dec 3, 1974
    • G04 - HOROLOGY
  • Information Patent Grant

    3820105
    • Patent number 3,820,105
    • Issue date Jun 25, 1974
    • G04 - HOROLOGY
  • Information Patent Grant

    3815780
    • Patent number 3,815,780
    • Issue date Jun 11, 1974
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    3697982
    • Patent number 3,697,982
    • Issue date Oct 10, 1972
    • G04 - HOROLOGY
  • Information Patent Grant

    3686878
    • Patent number 3,686,878
    • Issue date Aug 29, 1972
    • G04 - HOROLOGY
  • Information Patent Grant

    3643421
    • Patent number 3,643,421
    • Issue date Feb 22, 1972
    • G04 - HOROLOGY
  • Information Patent Grant

    3589123
    • Patent number 3,589,123
    • Issue date Jun 29, 1971
    • G04 - HOROLOGY
  • Information Patent Grant

    3541776
    • Patent number 3,541,776
    • Issue date Nov 24, 1970
    • G04 - HOROLOGY
  • Information Patent Grant

    3534543
    • Patent number 3,534,543
    • Issue date Oct 20, 1970
    • G04 - HOROLOGY
  • Information Patent Grant

    3475900
    • Patent number 3,475,900
    • Issue date Nov 4, 1969
    • G04 - HOROLOGY
  • Information Patent Grant

    3445612
    • Patent number 3,445,612
    • Issue date May 20, 1969
    • G04 - HOROLOGY
  • Information Patent Grant

    3320739
    • Patent number 3,320,739
    • Issue date May 23, 1967
    • G04 - HOROLOGY
  • Information Patent Grant

    3308617
    • Patent number 3,308,617
    • Issue date Mar 14, 1967
    • G04 - HOROLOGY
  • Information Patent Grant

    3270493
    • Patent number 3,270,493
    • Issue date Sep 6, 1966
    • G07 - CHECKING-DEVICES
  • Information Patent Grant

    3227827
    • Patent number 3,227,827
    • Issue date Jan 4, 1966
    • G04 - HOROLOGY
  • Information Patent Grant

    3213603
    • Patent number 3,213,603
    • Issue date Oct 26, 1965
    • G04 - HOROLOGY
  • Information Patent Grant

    3200577
    • Patent number 3,200,577
    • Issue date Aug 17, 1965
    • G04 - HOROLOGY
  • Information Patent Grant

    3192776
    • Patent number 3,192,776
    • Issue date Jul 6, 1965
    • G04 - HOROLOGY
  • Information Patent Grant

    3166887
    • Patent number 3,166,887
    • Issue date Jan 26, 1965
    • G04 - HOROLOGY
  • Information Patent Grant

    3152229
    • Patent number 3,152,229
    • Issue date Oct 6, 1964
    • G04 - HOROLOGY
  • Information Patent Grant

    3085136
    • Patent number 3,085,136
    • Issue date Apr 9, 1963
    • G04 - HOROLOGY
  • Information Patent Grant

    2709331
    • Patent number 2,709,331
    • Issue date May 31, 1955
    • G04 - HOROLOGY
  • Information Patent Grant

    1542275
    • Patent number 1,542,275
    • Issue date Jun 16, 1925
    • G04 - HOROLOGY

Patents Applicationslast 30 patents