David Pickrell

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State College, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Devices and systems including transducers
- Patent number 8,229,142
- Issue date Jul 24, 2012
- Mine Safety Appliances Company
- Vincent M. Colaizzi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
Devices and systems including transducers
- Publication number 20080260187
- Publication date Oct 23, 2008
- Vincent M. Colaizzi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS