TREA

Donald R. Douce

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  • South El Monte, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Earthquake responsive valve
    • Patent number 4,165,758
    • Issue date Aug 28, 1979
    • Donald R. Douce
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Automatic take-up winch
    • Patent number 4,036,476
    • Issue date Jul 19, 1977
    • Donald R. Douce
    • B60 - VEHICLES IN GENERAL