Skip to content

Explore all content

Explore the content of this site using the filters below to display different categories of information – Item Types, and their sub categories.
When you are looking for specific items of interest, use the search tools; enter keywords in the basic search on the landing page or in the header, or the Search page where you can enter keywords and define search parameters.
15 results found
0 filters applied
Uncheck All / Check All
Download
Contact Us
Compare
Display as:
of 1
Skip to search block
Add or Restrict Keywords

Use these options to add or remove words from your search:

AND - the term must be included in any item returned.

OR - the term may be included in any item returned, but does not have to be present. Always relates to the previous keyword/s.
*Cannot follow after NOT.

NOT - the term must not be included in any item returned. Always refers only to this keyword.
*Cannot be followed by OR

To remove a keyword – click X.

To return to your original search terms – click Clear.

Update search
Clear
template is Document
[Engineering Department projects [RM files], 1942-1945]
template is Document
[Remote control mechanism (Case 51-1) and pilot control system for aircraft (Case 50-2)," 1940-1941]
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 Image
1st Annual Lear-Avia Inc. Grand Rapids Branch Picnic
template is Document
[Performance and technical data for assorted products [RM files], 1938-1944]
template is Document
[Direction finders -- patent copies and diagrams [L-I-2/RM files], 1926-1941]
template is Document
[Product "pitch" letters and price lists, 1940 September - 1941 May]
template is Document
["Expandable ring clutch (WPL)" [L-D-123], 1943-1944 July]
template is Document
["Leartron control system" [L-D-101], 1943 February - 1944 February]
template is Document
["Radio direction finding system (Case 20-1)" -- patent application [RM files], 1940-1943]