TREA

Gerald L. Work

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  • Spokane, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Daylight developing apparatus for photographic film
    • Patent number 4,291,968
    • Issue date Sep 29, 1981
    • Gerald Work
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photographic processing tank
    • Patent number 4,168,117
    • Issue date Sep 18, 1979
    • Gerald L. Work
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Method for producing display sign panel
    • Patent number 4,053,340
    • Issue date Oct 11, 1977
    • American Sign & Indicator Corporation
    • Gerald L. Work
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Display sign
    • Patent number 4,045,895
    • Issue date Sep 6, 1977
    • American Sign & Indicator Corporation
    • Gerald L. Work
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS