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Dennis R. Smith

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  • Tulsa, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two-piece closure device
    • Patent number 8,251,238
    • Issue date Aug 28, 2012
    • TDW Delaware Inc.
    • Dennis R. Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bend detector pig
    • Patent number 4,930,223
    • Issue date Jun 5, 1990
    • TDW Delaware, Inc.
    • Dennis R. Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipeline bend verification pig
    • Patent number 4,780,962
    • Issue date Nov 1, 1988
    • T. D. Williamson, Inc.
    • Dennis R. Smith
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Two-Piece Closure Device
    • Publication number 20100072204
    • Publication date Mar 25, 2010
    • Dennis R. Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...