Aparejo (open access)

Aparejo

Patent for more efficient and durable pack-saddle (aparejo) used by United States Army. Casing involves hollow boot-sticks and rubber-encased steel, with better fitting to prevent fatigue of animal.
Date: February 11, 1902
Creator: Keller, John & Titsworth, Richard
System: The Portal to Texas History
Implement for Cutting and Handling Prickly-Pear (open access)

Implement for Cutting and Handling Prickly-Pear

Patent for an implement for cutting and handling prickly pear for use in clearing land.
Date: February 11, 1913
Creator: Brown, Royal H.
System: The Portal to Texas History
Differential (open access)

Differential

Patent for improvements in motor vehicle differentials by connecting axle sections to a worm gear.
Date: February 11, 1919
Creator: Brown, Charles Henry
System: The Portal to Texas History