John Grach

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Oakville, CA

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic friction clutch
- Patent number 8,020,683
- Issue date Sep 20, 2011
- Magna Closures Inc.
- M. Shehokin Borys
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Magnetic Friction Clutch
- Publication number 20080142327
- Publication date Jun 19, 2008
- Borys M. Shchokin
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES