David Paul Olsen

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Los Angeles, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Safety door
- Patent number 9,562,379
- Issue date Feb 7, 2017
- David Paul Olsen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Safety door
- Publication number 20080157541
- Publication date Jul 3, 2008
- David Paul Olsen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES