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Animal-Trap (open access)

Animal-Trap

Patent for an animal trap. Illustrations included.
Date: May 16, 1911
Creator: Morris, Leopold
System: The Portal to Texas History
Intermittent-Operating Mechanism (open access)

Intermittent-Operating Mechanism

Patent for intermittent-operating mechanism. This is to improve upon the automatic regulating means for windmills in regards to supplying water to a tank.
Date: October 16, 1917
Creator: Bittner, Emil R.
System: The Portal to Texas History