David J. Buck

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Delta, CA

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Patents Grantslast 30 patents

Information Patent Grant
Expandable prehangable split door frame
- Patent number 4,791,758
- Issue date Dec 20, 1988
- Windor Manufacturing Ltd.
- Gunther H. Bauer
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS