TREA

John Blair Hamilton

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  • Concord, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Memory button mount
    • Patent number D630631
    • Issue date Jan 11, 2011
    • TimeKeeping Systems, Inc.
    • John Blair Hamilton
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Memory button mount
    • Patent number D615541
    • Issue date May 11, 2010
    • TimeKeeping Systems, Inc.
    • John Blair Hamilton
    • D14 - Recording, communication, or information retrieval equipment