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Grapple

Description: Patent for providing a cheaper version of removing pipes or tubing from wells.
Date: March 18, 1913
Creator: Drake, Charles W.
Partner: UNT Libraries Government Documents Department

Plow-Point Attachment

Description: Patent for an attachment for the point of a plow that protects the point from wear and tear, especially in soil that is sandy.
Date: July 18, 1916
Creator: Trout, Calvin L.
Partner: UNT Libraries Government Documents Department
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