TREA

Douglas Hall

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  • Clarkston, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Virtual instrument panel
    • Patent number 6,317,037
    • Issue date Nov 13, 2001
    • Atoma International Corp.
    • Craig A. Ayres
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Electronic analogue compass
    • Patent number 6,141,881
    • Issue date Nov 7, 2000
    • Invotronics Manufacturing
    • Craig A. Ayres
    • G01 - MEASURING TESTING