TREA

Robert M. Graham

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  • Birmingham, AL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Restrained pipe joint
    • Patent number 4,540,204
    • Issue date Sep 10, 1985
    • United States Pipe and Foundry Company
    • Billy J. Battle
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasketed pipe joint
    • Patent number 4,108,481
    • Issue date Aug 22, 1978
    • United States Pipe and Foundry Company
    • Robert Malcolm Graham
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Plain end pipe joint
    • Patent number 4,026,586
    • Issue date May 31, 1977
    • United States Pipe and Foundry Company
    • Harold Kennedy
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...