TREA

Herman O. Rogg

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  • Watchung, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Music rack
    • Patent number D249585
    • Issue date Sep 19, 1978
    • Graber-Rogg, Inc.
    • Harold B. Martin
    • D56 -
  • Information Patent Grant

    Compact chord organ
    • Patent number 4,091,707
    • Issue date May 30, 1978
    • Graber-Rogg, Inc.
    • Harold B. Martin
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS