TREA

Herbert O. Smith

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  • Santa Cruz, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe plugging apparatus
    • Patent number 5,894,863
    • Issue date Apr 20, 1999
    • Tommy D. Lewis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...