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• Subject > Aids to air navigation (remove)
• Format > patents (remove)
• Subject > Radio in aeronautics (remove)

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• Lear, William P. (William Powell), 1902-1978 (1)
• Radio direction finders (1)

2 results

[William P. and Moya Olsen Lear Papers, Box 18, Folder 2; Box 200, Folder 2 - "Radio direction finding system (Case 20-1)" -- patent application [RM files], 1940-1943] (Item)

Items from Box 18, Folder 2 and Box 200, Folder 2 of the William P. and Moya Olsen Lear Papers, circa 1940-1943. Contains documents and drawings related to the patent application of the radio direction finding system (Case 20-1). 24 total items.

[Patent application for Gyromatic Radio Compass] (Item)

Patent application for the Gyromatic Radio Compass submitted by William P. Lear, October 30, 1944. 24 typed pages.