Mousetrap (open access)

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. (open access)

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 (open access)

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 (open access)

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