David E. Forristall

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Suisun, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable self-locking level support
- Patent number 4,095,671
- Issue date Jun 20, 1978
- Utility Products, Inc.
- David E. Forristall
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS