IP Library › Granted Patent US 4,251,966
Granted Patent Utility
US 4,251,966 · App. 06/020,150

Adjustable height shutter

Inventor: Duane J. Foltman
Patented Case View Patent ↗
Granted: Feb 24, 1981 Filed: Mar 13, 1979
Inventor
Duane J. Foltman

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Quick Facts
Patent No.
US 4,251,966
App. No.
06/020,150
Filed
1979-03-13
Granted
1981-02-24
Kind
A