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template is Document
["Directional radio system (Case 17-2)" -- patent application [RM files], 1940]
template is Document
["Quad corrector (Lear-Lorch)," 1940 December - 1941 January]
template is Document
[Radio apparatus chassis (Case 74-1), 1939 December - 1942 October]
template is Document
[Advertisement poster for Learadio aircraft equipment]
template is Document
["Aviation radio before, during, and after the war" -- WPL speech, 1945 March 7]
template is Document
["Radio direction finding system (Case 20-1)" -- patent application [RM files], 1940-1943]
template is Document
["Radio automatic guidance system (Case 31-3) and loop antenna system (Can 8-1)," 1940-1943]
template is Image
[William P. Lear and employees looking at airborne radio equipment]
template is Image
[Learadio equipment installed in front cockpit]
template is Image
[Learadio equipment installed in front and rear cockpits]
template is Image
[Learadio panel assembly]
template is Image
[Betsy Ross using Learadio portable receiver]
template is Image
[Learadio portable receiver]
template is Image
[Learmatic navigator]
template is Image
[Learadio automatic direction finder]
template is Image
[Learadio radio compass tuning unit]
template is Image
[Learadio Model RCB receiver tuning unit]
template is Image
[Aircraft instrument panel equipped with Learadio device]
template is Document
["Learadio Airport Localizer (L-P-2)", 1939 September - October]
template is Image
[William P. Lear holding Lear Radio-Aire]
template is Image
[William P. Lear with Lear-o-Scope equipped automobile]
template is Image
[William P. Lear with Lear-o-Scope and loop antenna]
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