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Plow.

Description: Patent for a new and improved plow. This design consists in "[t]he combination, with the plow-beam, of the plow-standard hinged to a crank-rod journaled in the plow-beam, the tension-spring connected to the plow-standard and provided with the adjustable plate, and the key or rod for securing the adjusting-plate in place" (lines 83-88).
Date: February 1, 1887
Creator: Ross, Albert J.
Partner: UNT Libraries Government Documents Department

Horse Detacher

Description: Patent for a new and improved horse detacher which allows the driver to unhitch a horse without exiting the carriage or wagon, including specifications and illustrations.
Date: April 1, 1913
Creator: Carter, William Otis
Partner: UNT Libraries Government Documents Department
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