IP Library › Granted Patent US 5,117,375
Granted Patent Utility
US 5,117,375 · App. 07/423,668

Calibration of magnetic compasses

Inventors: Paul L. A. Worcester, David Maxwell, Michael L. Trethewey
Patented Case View Patent ↗
Granted: May 26, 1992 Filed: Oct 19, 1989
Inventors
Paul L. A. Worcester
David Maxwell
Michael L. Trethewey
Assignee (at issue)
British Aerospace Public Limited Co.

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Quick Facts
Patent No.
US 5,117,375
App. No.
07/423,668
Filed
1989-10-19
Granted
1992-05-26
Kind
A