Collection
Serial/Series Title
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7 Matching Results
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7
Mousetrap
Patent for a mousetrap that is an improvement to the average mousetrap, but new in the sense that it can be made in various proportions or sizes for a variety of vermin.
Date:
January 24, 1922
Creator:
Spencer, Clarence E.
Object Type:
Patent
System:
The Portal to Texas History
Roby Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1922
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Sweetwater Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1922
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Design for a Military Uniform.
Patent for a new, original, and ornamental design for a military uniform.
Date:
October 25, 1921
Creator:
Meacham, Haskell K.
Object Type:
Patent
System:
The Portal to Texas History
Anson Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1921
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ice-Machine
Patent for an icebox that can be combined with a refrigerator. The icebox will spray the ammonia compressor coil with water, as well as inducing a forced circulation of water in the icebox's freezing tank.
Date:
May 22, 1920
Creator:
Grant, Willburn C.
Object Type:
Patent
System:
The Portal to Texas History
Power-Driven-Implement Frame
Patent for improvements in power driven implement frames, specifically in tractors, with illustrations.
Date:
January 13, 1920
Creator:
Armstrong, Ira
Object Type:
Patent
System:
The Portal to Texas History