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Pump.

Description: Patent for a simple, efficient, and low maintenance submerged rotary pump, including illustration.
Date: February 22, 1859
Creator: Fagan, James L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Coupling

Description: Patent for improvements to car-coupling using a vertically-moving pin for locking the cars together.
Date: November 14, 1882
Creator: Blackley, George I.; Nicholson, John I. & Holloman, Harvey A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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