Peter Edward James Spencer

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Beverley, GB

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Patents Grantslast 30 patents

Information Patent Grant
Detection of obstruction of doors
- Patent number 6,779,302
- Issue date Aug 24, 2004
- Deans Systems Limited
- Nicholas Charles Harrison
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Detection of obstruction of doors
- Publication number 20030192252
- Publication date Oct 16, 2003
- Nicholas Charles Harrison
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES