TREA

Ellis Barron

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  • La Jolla, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pianoharp action
    • Patent number 4,426,905
    • Issue date Jan 24, 1984
    • Ellis Barron
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Pianoharp action
    • Patent number 4,285,261
    • Issue date Aug 25, 1981
    • Ellis Barron
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Pneumatic piano action
    • Patent number 4,152,967
    • Issue date May 8, 1979
    • Ellis Barron
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Plectrum piano action
    • Patent number 4,099,440
    • Issue date Jul 11, 1978
    • Ellis Barron
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS