TREA

Eric B. Holtsmark

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  • Piedmont, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable size pipe connector
    • Patent number 5,143,408
    • Issue date Sep 1, 1992
    • Eric B. Holtsmark
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...