John A. Walker

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Cambridge, CA

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Patents Grantslast 30 patents

Information Patent Grant
Screen cloth insertion apparatus and method
- Patent number 6,991,693
- Issue date Jan 31, 2006
- Saint-Gobain Bayform America, Inc.
- Douglas H. Wylie
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS

Patents Applicationslast 30 patents

Information Patent Application
Screen cloth insertion apparatus and method
- Publication number 20030029546
- Publication date Feb 13, 2003
- Douglas H. Wylie
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS