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Ant Trap
Patent for an ant trap. Illustration included.
Date:
April 14, 1908
Creator:
Howard, Martin T.
System:
The Portal to Texas History
Transmission-Gearing.
Patent for a transmission gearing that prevents the gears from slipping loose.
Date:
March 14, 1911
Creator:
Blevins, Samuel W.
System:
The Portal to Texas History