TREA

Jonathan Grayson

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  • Philadelphia, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Musical instrument string
    • Patent number 5,408,911
    • Issue date Apr 25, 1995
    • Lyrrus, Inc.
    • Nathaniel Weiss
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Electronic music system
    • Patent number 5,270,475
    • Issue date Dec 14, 1993
    • Lyrrus, Inc.
    • Nathaniel Weiss
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS