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Clamp.

Description: Patent for a new and useful clamp, including instructions and illustrations.
Date: November 15, 1898
Creator: Hauff, Isaac F.
Partner: UNT Libraries Government Documents Department

Car Coupling.

Description: Patent for a new and improved coupling for railroad cars. This design "consists, [primarily], of certain devices whereby the coupling-pin raised in the draw-head is supported until the draw-heads strike each other in coupling, when the coupling-pin falls by gravity" (lines 17-21).
Date: November 15, 1881
Creator: Thomason, John W.
Partner: UNT Libraries Government Documents Department
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