Ronald J. Frere

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Southampton, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic locking system and key therefor
- Patent number 4,848,115
- Issue date Jul 18, 1989
- Emhart Industries, Inc.
- Bruce A. Clarkson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic locking system and key therefor
- Patent number 4,789,859
- Issue date Dec 6, 1988
- Emhart Industries, Inc.
- Bruce A. Clarkson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic locking system and key therefor
- Patent number 4,712,398
- Issue date Dec 15, 1987
- Emhart Industries, Inc.
- Bruce A. Clarkson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES