John Hallberg

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Andover, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic transmission device
- Patent number 8,330,314
- Issue date Dec 11, 2012
- John Hallberg
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC TRANSMISSION DEVICE
- Publication number 20100171382
- Publication date Jul 8, 2010
- John Hallberg
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC