Browse Items (2 total)
- Collection: Subseries II-G - Research materials, 1884-1945, undated
[William P. and Moya Olsen Lear Papers, Box 28, Folder 4; Box 200, Folder 4 - Direction finders -- patent copies and diagrams [L-I-2/RM files], 1926-1941]
![[William P. and Moya Olsen Lear Papers, Box 28, Folder 4; Box 200, Folder 4 - Direction finders -- patent copies and diagrams [L-I-2/RM files], 1926-1941]](https://digitalcollections.museumofflight.org/files/square_thumbnails/de364c72778d0d655dbf198af2658408.jpg "[William P. and Moya Olsen Lear Papers, Box 28, Folder 4; Box 200, Folder 4 - Direction finders -- patent copies and diagrams [L-I-2/RM files], 1926-1941]")
Items from Box 28, Folder 4 and Box 200, Folder 4 of the William P. and Moya Olsen Lear Papers, circa 1926-1941. Contains patent copies and diagrams related to Lear direction finders. 26 total items.
[William P. and Moya Olsen Lear Papers, Box 28, Folder 5 - Direction finders, 1926-1941]
![[William P. and Moya Olsen Lear Papers, Box 28, Folder 5 - Direction finders, 1926-1941]](https://digitalcollections.museumofflight.org/files/square_thumbnails/a5f7b3c272d7532d81e60ae1c605235d.jpg "[William P. and Moya Olsen Lear Papers, Box 28, Folder 5 - Direction finders, 1926-1941]")
Items from Box 28, Folder 5 of the William P. and Moya Olsen Lear Papers, 1926-1941. Contains patent documentation for various aircraft and radio systems: Joseph Dugan's synchronous bomb sight, Dugan's radio direction and position indicating system,…