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Wrench

Description: Patent for an improved wrench.
Date: February 20, 1917
Creator: Hamlett, James W.
Partner: UNT Libraries Government Documents Department

Automatic Train-Gate.

Description: Patent for "new and useful improvements in automatic train gates" (lines 5-7) including illustrations.
Date: February 3, 1920
Creator: Ivanhoe, George. C.
Partner: UNT Libraries Government Documents Department
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