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Priming-Cup
Patent for an improved version of the priming cup "shown in Patent No. 1,329,464, granted February 3, 1920" (lines13-14). Includes illustrations.
Date:
April 5, 1921
Creator:
Martinek, Stanley A.
System:
The Portal to Texas History
Tractor
Patent for improvements in tractors for farm and road work. Improvements include enclosing all working parts within a protecting housing, mounting the motor for rotation, balance the weight, provide a wheel carriage to adjust the width and height, and to provide shifting gears.
Date:
April 26, 1921
Creator:
Ingram, Joseph D.
System:
The Portal to Texas History