David G. Zimmerman

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Carnation, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable control of electronic power supplies
- Patent number 5,909,145
- Issue date Jun 1, 1999
- Maven Peal Instruments, Inc.
- David G. Zimmerman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Variable control of electronic power supplies
- Patent number 5,635,872
- Issue date Jun 3, 1997
- Maven Peal Instruments, Inc.
- David G. Zimmerman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS