Walter J. Aston

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Dudley, GB

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Patents Grantslast 30 patents

Information Patent Grant
Electrically operable cylinder lock
- Patent number 5,839,305
- Issue date Nov 24, 1998
- Yale Security Products Limited
- Walter John Aston
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Lock, key and combination of lock and key
- Patent number 5,351,042
- Issue date Sep 27, 1994
- Yale Security Products Limited
- Walter J. Aston
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electromagnetically activated mechanisms
- Patent number 5,014,030
- Issue date May 7, 1991
- Yale Security Products Ltd.
- Walter J. Aston
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic key-operable lock and key thereof
- Patent number 4,866,962
- Issue date Sep 19, 1989
- Yale Security Products Limited
- Walter J. Aston
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic security device
- Patent number 4,396,914
- Issue date Aug 2, 1983
- Scovill Inc.
- Walter J. Aston
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES