George H. Hoffman

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-closing hinge structure
- Patent number 4,761,853
- Issue date Aug 9, 1988
- Allied Plastics Enterprises, Inc.
- George H. Hoffman
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES