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whereby the adjustment device works on the mainspring

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GPHYSICS G04Horology G04DAPPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES G04D7/00Measuring, counting, calibrating, testing or regulating apparatus

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G04D7/1285whereby the adjustment device works on the mainspring
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Patents Grantslast 30 patents

  • Information Patent Grant

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    • Eta Sa Manufacture Horlogère Suisse
    • Thierry Conus
    • G04 - HOROLOGY
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    Rate adjusting method of mechanical timepieces
    • Patent number 6,609,822
    • Issue date Aug 26, 2003
    • Seiko Instruments Inc.
    • Takeshi Tokoro
    • G04 - HOROLOGY
  • Information Patent Grant

    Apparatus for adjusting a frequency of an oscillating element provi...
    • Patent number 3,978,750
    • Issue date Sep 7, 1976
    • Kabushiki Kaisha Seikosha
    • Souichi Inoue
    • G04 - HOROLOGY
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    3843988
    • Patent number 3,843,988
    • Issue date Oct 29, 1974
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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    3334512
    • Patent number 3,334,512
    • Issue date Aug 8, 1967
    • G04 - HOROLOGY
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    2772562
    • Patent number 2,772,562
    • Issue date Dec 4, 1956
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    2748595
    • Patent number 2,748,595
    • Issue date Jun 5, 1956
    • G04 - HOROLOGY
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    2714306
    • Patent number 2,714,306
    • Issue date Aug 2, 1955
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    2707875
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    2673461
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    2667061
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    2624194
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    2547705
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    2541286
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    2479875
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    2231849
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    2227858
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    2183655
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    • Issue date Dec 19, 1939
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    2158725
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    2094057
    • Patent number 2,094,057
    • Issue date Sep 28, 1937
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    2077008
    • Patent number 2,077,008
    • Issue date Apr 13, 1937
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    2019769
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    1793333
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    1779122
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    • G04 - HOROLOGY
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    1748645
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Patents Applicationslast 30 patents