William A. Fast

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Winnipeg, CA

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Patents Grantslast 30 patents

Information Patent Grant
Extruded window frame system
- Patent number 5,090,168
- Issue date Feb 25, 1992
- Willmar Window Industries Ltd.
- William A. Fast
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS