TREA

with pendulums

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  • G04B17/225
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GPHYSICS G04Horology G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS G04B17/00Mechanisms for stabilising frequency

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G04B17/225with pendulums
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Patents Grantslast 30 patents

  • Information Patent Grant

    Enhanced compound pendulums and systems
    • Patent number 8,475,034
    • Issue date Jul 2, 2013
    • The Long Now Foundation
    • W. Daniel Hillis
    • G04 - HOROLOGY
  • Information Patent Grant

    1556553
    • Patent number 1,556,553
    • Issue date Oct 6, 1925
    • G04 - HOROLOGY
  • Information Patent Grant

    1017678
    • Patent number 1,017,678
    • Issue date Feb 20, 1912
    • G04 - HOROLOGY
  • Information Patent Grant

    991717
    • Patent number 991,717
    • Issue date May 9, 1911
    • G04 - HOROLOGY
  • Information Patent Grant

    965507
    • Patent number 965,507
    • Issue date Jul 26, 1910
    • G04 - HOROLOGY
  • Information Patent Grant

    930664
    • Patent number 930,664
    • Issue date Aug 10, 1909
    • G04 - HOROLOGY
  • Information Patent Grant

    850887
    • Patent number 850,887
    • Issue date Apr 16, 1907
    • G04 - HOROLOGY
  • Information Patent Grant

    753475
    • Patent number 753,475
    • Issue date Mar 1, 1904
    • G04 - HOROLOGY
  • Information Patent Grant

    751686
    • Patent number 751,686
    • Issue date Feb 9, 1904
    • G04 - HOROLOGY
  • Information Patent Grant

    606753
    • Patent number 606,753
    • Issue date Jul 5, 1898
    • G04 - HOROLOGY
  • Information Patent Grant

    594365
    • Patent number 594,365
    • Issue date Nov 30, 1897
    • G04 - HOROLOGY
  • Information Patent Grant

    508530
    • Patent number 508,530
    • Issue date Nov 14, 1893
    • G04 - HOROLOGY
  • Information Patent Grant

    472624
    • Patent number 472,624
    • Issue date Apr 12, 1892
    • G04 - HOROLOGY
  • Information Patent Grant

    436941
    • Patent number 436,941
    • Issue date Sep 23, 1890
    • G04 - HOROLOGY
  • Information Patent Grant

    436343
    • Patent number 436,343
    • Issue date Sep 16, 1890
    • G04 - HOROLOGY
  • Information Patent Grant

    415735
    • Patent number 415,735
    • Issue date Nov 26, 1889
    • G04 - HOROLOGY
  • Information Patent Grant

    409705
    • Patent number 409,705
    • Issue date Aug 27, 1889
    • G04 - HOROLOGY
  • Information Patent Grant

    396095
    • Patent number 396,095
    • Issue date Jan 15, 1889
    • G04 - HOROLOGY
  • Information Patent Grant

    334958
    • Patent number 334,958
    • Issue date Jan 26, 1886
    • G04 - HOROLOGY
  • Information Patent Grant

    315527
    • Patent number 315,527
    • Issue date Apr 14, 1885
    • G04 - HOROLOGY
  • Information Patent Grant

    293865
    • Patent number 293,865
    • Issue date Feb 19, 1884
    • G04 - HOROLOGY
  • Information Patent Grant

    288027
    • Patent number 288,027
    • Issue date Nov 6, 1883
    • G04 - HOROLOGY
  • Information Patent Grant

    279828
    • Patent number 279,828
    • Issue date Jun 19, 1883
    • G04 - HOROLOGY
  • Information Patent Grant

    279176
    • Patent number 279,176
    • Issue date Jun 12, 1883
    • G04 - HOROLOGY
  • Information Patent Grant

    257177
    • Patent number 257,177
    • Issue date May 2, 1882
    • G04 - HOROLOGY
  • Information Patent Grant

    255909
    • Patent number 255,909
    • Issue date Apr 4, 1882
    • G04 - HOROLOGY
  • Information Patent Grant

    248541
    • Patent number 248,541
    • Issue date Oct 18, 1881
    • G04 - HOROLOGY
  • Information Patent Grant

    231800
    • Patent number 231,800
    • Issue date Aug 31, 1880
    • G04 - HOROLOGY
  • Information Patent Grant

    230305
    • Patent number 230,305
    • Issue date Jul 20, 1880
    • G04 - HOROLOGY
  • Information Patent Grant

    218344
    • Patent number 218,344
    • Issue date Aug 5, 1879
    • G04 - HOROLOGY

Patents Applicationslast 30 patents