Clifford Blackburn

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Decatur, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Musical instrument piston valve
- Patent number 7,667,117
- Issue date Feb 23, 2010
- Verne Q. Powell Flutes, Inc.
- Steven Wasser
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Musical instrument piston valve
- Publication number 20060219083
- Publication date Oct 5, 2006
- Steven Wasser
- G10 - MUSICAL INSTRUMENTS ACOUSTICS