TREA

Robert Van Den Heuvel

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  • Culver City, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wire jaw stoneholder
    • Patent number 5,378,032
    • Issue date Jan 3, 1995
    • GIA GEM Instruments Corporation
    • Richard C. Agnew
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Darkfield loupe
    • Patent number D351176
    • Issue date Oct 4, 1994
    • GIA Gem Institute Corporation
    • Richard C. Agnew
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Wire jaw stoneholder
    • Patent number 5,242,203
    • Issue date Sep 7, 1993
    • GIA GEM Instruments Corporation
    • Richard Agnew
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS