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Combined Cotton Chopper and Cultivator

Description: Patent for a combined cotton chopper and cultivator. Illustration included.
Date: October 11, 1910
Creator: Carter, Chester Clark
Partner: UNT Libraries Government Documents Department

Air Pump

Description: Patent for an air pump designed to have a strong cylinder and be able to equal quantities of air upon both the upward and downward motion of the piston.
Date: October 28, 1919
Creator: Keating, Paul W.
Partner: UNT Libraries Government Documents Department
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