Box 28
Container
Contains 20 Results:
244-90 1,264,485-1,396,459, Apr 1918-Nov 1921
File — Box: 28, Folder: 11
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:
Apr 1918-Nov 1921
244-90 1,403,715-1,555,247, Jan 1922-Sep 1925
File — Box: 28, Folder: 12
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:
Jan 1922-Sep 1925
244-90 1,056,844-1,152,432, Mar 1913-Sep 1915
File — Box: 28, Folder: 13
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 1913-Sep 1915
244-90 1,153,612-1,242,295, Sep 1915-Oct 1917
File — Box: 28, Folder: 14
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:
Sep 1915-Oct 1917
244-90 2,718,366-4,729,528, Sep 1955-Mar 1988
File — Box: 28, Folder: 15
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:
Sep 1955-Mar 1988
244-90 2,352,062-2,419,161, Jun 1944-Apr 1947
File — Box: 28, Folder: 16
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:
Jun 1944-Apr 1947
244-90 2,421,374-2,666,603, Jun 1947-Jan 1954
File — Box: 28, Folder: 17
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:
Jun 1947-Jan 1954
244-91 113,649-1,145,406, Jul 1915-Mar 1939
File — Box: 28, Folder: 18
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:
Jul 1915-Mar 1939
244-91 1,151,172-2,937,828, Aug 1915-May 1960
File — Box: 28, Folder: 19
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:
Aug 1915-May 1960
244-91 1,157,636-4,693,435, Oct 1915-Sep 1987
File — Box: 28, Folder: 20
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:
Oct 1915-Sep 1987
