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Pump-Operating Mechanism
Patent for a mechanical pump operating mechanism that increases capacity.
Date:
July 4, 1911
Creator:
Linnartz, Hugo
System:
The Portal to Texas History
Rice-Hulling Machine
Patent for a rice hulling machine. Illustrations included.
Date:
April 4, 1911
Creator:
Couch, Albert B.
System:
The Portal to Texas History