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Liquid-Cooler.
Patent for a liquid cooler consisting of "few parts of simple form" (line 13) and constructed of wood and metal, including illustrations. The liquid cooler can be thoroughly cleaned, making it possible to maintain a "sanitary condition" (line 17).
Date:
July 22, 1913
Creator:
Hanna, Oscar V.
System:
The Portal to Texas History
Well-Casing
Patent for a sectional well casing. Illustrations included.
Date:
July 26, 1910
Creator:
Hardy, Paul
System:
The Portal to Texas History
Tool for Lowering and Raising Well-Tubes
Patent for a tool used for lowing and raising well tubes. Illustrations included.
Date:
July 26, 1910
Creator:
Hardy, Paul
System:
The Portal to Texas History