Roger W. Challis

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Vancouver, CA

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable security enclosure
- Patent number 7,029,133
- Issue date Apr 18, 2006
- Hard Steal Security Corp.
- Roger W. Challis
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Adjustable security enclosure
- Publication number 20050286028
- Publication date Dec 29, 2005
- Roger W. Challis
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY