Barry E. Carter

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Device for improving piano tone quality
- Patent number 4,422,360
- Issue date Dec 27, 1983
- Barry E. Carter
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Tone changing means for percussion instruments
- Patent number 4,324,164
- Issue date Apr 13, 1982
- Charles Monte
- G10 - MUSICAL INSTRUMENTS ACOUSTICS