TREA

Robert K. Blackhall

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  • Kanata, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Home communications and control system
    • Patent number 4,538,031
    • Issue date Aug 27, 1985
    • Trillium Telephone Systems Inc.
    • Gordon D. Benning
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Home telephone exchange
    • Patent number 4,459,434
    • Issue date Jul 10, 1984
    • Mitel Corporation
    • Gordon D. Benning
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE