Ernest Bird

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Osceola, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Dual-coil, dual gap electromagnetic transducer with multiple channe...
- Patent number 8,325,943
- Issue date Dec 4, 2012
- Harman International Industries, Incorporated
- Douglas J. Button
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DUAL-COIL, DUAL GAP ELECTROMAGNETIC TRANSDUCER WITH MULTIPLE CHANNE...
- Publication number 20080170744
- Publication date Jul 17, 2008
- Douglas J. Button
- H04 - ELECTRIC COMMUNICATION TECHNIQUE