Jeffrey J. Lewis

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Los Angeles, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Wind instrument
- Patent number 4,401,007
- Issue date Aug 30, 1983
- Jeffrey J. Lewis
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Wind instrument with continuously variable pitch control
- Patent number 4,320,686
- Issue date Mar 23, 1982
- Jeffrey J. Lewis
- G10 - MUSICAL INSTRUMENTS ACOUSTICS