TREA

Harold Allen

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  • Fawnskin, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic flow valve
    • Patent number 6,516,826
    • Issue date Feb 11, 2003
    • Harold Allen
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Position and angle indicating tool
    • Patent number 6,470,579
    • Issue date Oct 29, 2002
    • Harold Allen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Pipe drilling apparatus
    • Patent number 5,051,044
    • Issue date Sep 24, 1991
    • Harold Allen
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    HYDRAULIC FLOW VALVE
    • Publication number 20030000575
    • Publication date Jan 2, 2003
    • Harold Allen
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    Position and angle indicating tool
    • Publication number 20020078578
    • Publication date Jun 27, 2002
    • Harold Allen
    • G01 - MEASURING TESTING