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Whiffletree

Description: Patent for a whiffletree. Illustration included.
Date: December 10, 1912
Creator: Jackson, Oliver S.
Partner: UNT Libraries Government Documents Department

Agricultural Machine.

Description: Patent for an agricultural machine, a frame structure that can hold multiple types of agricultural devices and allows for the proper adjustment and manipulation of said devices without changing the frame's structure.
Date: December 30, 1919
Creator: Northcutt, John & Crawford, Miner
Partner: UNT Libraries Government Documents Department
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