Peter Alef

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Institutional door lock and retrofit mechanism
- Patent number 8,381,558
- Issue date Feb 26, 2013
- Peter Alef
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Institutional door lock and retrofit mechanism
- Publication number 20080289377
- Publication date Nov 27, 2008
- Peter Alef
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES