Box 20
Container
Contains 21 Results:
244-73 1,133,660-15,922, Mar 1915-Sep 1924
File — Box: 20, Folder: 22
Scope and Content
From the Collection:
The Lockheed Martin Aeronautical Patent Collection documents innovations in aviation from the mid-19th century through most of the 20th century. These patents pertain to everything from dirigibles and gliders to modern day jet engines and in-flight refueling methods. Researchers who utilize these records can learn much about aviation before the first sustained and controlled heavier-than-air flight and its advancements since. The collection is arranged into series based on the original...
Dates:
Mar 1915-Sep 1924
