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Feed-Trough
Patent for a feed trough for chickens and other small animals.
Date:
September 24, 1912
Creator:
Davis, James H.
System:
The Portal to Texas History
Rock Drill
Patent for a rock drill. This invention is designed for use with a pitman driven by a crank movement or a direct ratchet connected to a driving rod. Illustrations included.
Date:
December 24, 1912
Creator:
Speer, George F.
System:
The Portal to Texas History