TREA

Douglas M. Thornton

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  • Rochester, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Monitor for double safety valves
    • Patent number 4,542,767
    • Issue date Sep 24, 1985
    • Ross Operating Valve Company
    • Douglas M. Thornton
    • B30 - PRESSES
  • Information Patent Grant

    Port thread
    • Patent number 4,033,615
    • Issue date Jul 5, 1977
    • Ross Operating Valve Company
    • Raymond A. Miller
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...