IP Library › Granted Patent US 4,811,921
Granted Patent Utility
US 4,811,921 · App. 07/064,988

Cyclic control stick

Inventors: Charles N. Whitaker, Richard Zimmermann
Patented Case View Patent ↗
Granted: Mar 14, 1989 Filed: Jun 22, 1987
Inventors
Charles N. Whitaker
Richard Zimmermann

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Quick Facts
Patent No.
US 4,811,921
App. No.
07/064,988
Filed
1987-06-22
Granted
1989-03-14
Kind
A