TREA

David G. Turnbull

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  • Austin, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone control module case assembly
    • Patent number D414188
    • Issue date Sep 21, 1999
    • Matthews Communications Management, Inc.
    • Gordon H. Matthews
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Call management system case assembly
    • Patent number D413894
    • Issue date Sep 14, 1999
    • Matthews Communications Management, Inc.
    • Gordon H. Matthews
    • D14 - Recording, communication, or information retrieval equipment