TREA

Robert L. Cheney

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  • Arcadia, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Light deflection apparatus
    • Patent number RE30806
    • Issue date Nov 24, 1981
    • Bell & Howell Company
    • Winfield Sample
    • 324 - Electricity: measuring and testing
  • Information Patent Grant

    Light deflection apparatus
    • Patent number 4,012,694
    • Issue date Mar 15, 1977
    • Bell & Howell Company
    • Winfield Sample
    • G01 - MEASURING TESTING