TREA

Steven St. John Tourison

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  • Glen Burnie, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Audio system
    • Patent number D637994
    • Issue date May 17, 2011
    • Polk Audio, Inc.
    • Ken Sakamaki Chae
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Speaker
    • Patent number D617775
    • Issue date Jun 15, 2010
    • Polk Audio, Inc.
    • Ken Sakamaki Chae
    • D14 - Recording, communication, or information retrieval equipment