TREA

Illumination

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Industry

  • CPC
  • G01C17/24
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Parent Industries

GPHYSICS G01Measuring instruments G01CMEASURING DISTANCES, LEVELS OR BEARINGS SURVEYING NAVIGATION GYROSCOPIC INSTRUMENTS PHOTOGRAMMETRY OR VIDEOGRAMMETRY G01C17/00Compasses Devices for ascertaining true or magnetic north for navigation or surveying purposes

Current Industry

G01C17/24Illumination
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Emergency responder's orientation method and device
    • Patent number 7,448,140
    • Issue date Nov 11, 2008
    • Steven D. Nash
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Electroluminescent illumination for a magnetic compass
    • Patent number 7,001,036
    • Issue date Feb 21, 2006
    • Universal Plastics Products, Inc.
    • Carroll Miller
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Magnetic compass
    • Patent number 6,973,732
    • Issue date Dec 13, 2005
    • Gin-Sung Chang
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Magnetic compass
    • Patent number 6,578,277
    • Issue date Jun 17, 2003
    • Gin-Sung Chang
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Illuminating device for a magnetic compass
    • Patent number 6,145,209
    • Issue date Nov 14, 2000
    • Gin-Sung Chang
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3805400
    • Patent number 3,805,400
    • Issue date Apr 23, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3029334
    • Patent number 3,029,334
    • Issue date Apr 10, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2738412
    • Patent number 2,738,412
    • Issue date Mar 13, 1956
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2188821
    • Patent number 2,188,821
    • Issue date Jan 30, 1940
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2075068
    • Patent number 2,075,068
    • Issue date Mar 30, 1937
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1908971
    • Patent number 1,908,971
    • Issue date May 16, 1933
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1873684
    • Patent number 1,873,684
    • Issue date Aug 23, 1932
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1819310
    • Patent number 1,819,310
    • Issue date Aug 18, 1931
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1445131
    • Patent number 1,445,131
    • Issue date Feb 13, 1923
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1333222
    • Patent number 1,333,222
    • Issue date Mar 9, 1920
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents