TREA

Ronald W. Vale

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  • San Ysidro, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Analog sound track digitizer
    • Patent number 6,351,302
    • Issue date Feb 26, 2002
    • George D. Carlsen
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Hemispherical speaker system
    • Patent number 5,025,473
    • Issue date Jun 18, 1991
    • George D. Carlsen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE