Dawson A. Christie

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Winnipeg, Manitoba, CA

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Patents Grantslast 30 patents

Information Patent Grant
Building system for windows, enclosures, buildings and the like
- Patent number 4,858,405
- Issue date Aug 22, 1989
- Dawson A. Christie
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS