IP Library › Granted Patent US 5,304,036
Granted Patent Utility
US 5,304,036 · App. 07/626,972

Autogyro aircraft

Inventors: Henry J. Groen, David L. Groen
Patented Case View Patent ↗
Granted: Apr 19, 1994 Filed: Dec 12, 1990
Inventors
Henry J. Groen
David L. Groen
Assignee (at issue)
Sego Tool, Incorporated

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Quick Facts
Patent No.
US 5,304,036
App. No.
07/626,972
Filed
1990-12-12
Granted
1994-04-19
Kind
A