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Gate-Operating Mechanism

Description: Patent for "new and useful Improvements in Gate-Operating Mechanisms" (lines 4-6) including instructions and illustrations.
Date: December 12, 1911
Creator: Wilson, Simeon
Partner: UNT Libraries Government Documents Department

Water-Fence.

Description: Patent for the improved design of a water fence with specifications that allow the passage of a log without fully raising the fence; includes illustrations.
Date: March 26, 1901
Creator: Walton, John H. & Ball, William M.
Partner: UNT Libraries Government Documents Department
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