Donald M. Johnson

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Sandisfield, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Stringed musical instrument body and neck assembly
- Patent number 6,372,970
- Issue date Apr 16, 2002
- Kaman Music Corporation
- Robert H. Saunders
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Stringed musical instrument top member
- Patent number 6,294,718
- Issue date Sep 25, 2001
- Kaman Music Corporation
- Robert H. Saunders
- G10 - MUSICAL INSTRUMENTS ACOUSTICS