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Pipe-Wrench.

Description: Patent for improvements to pipe wrenches to a more simple design.
Date: February 16, 1915
Creator: Lewis, Guy V.
Partner: UNT Libraries Government Documents Department

Device for Dipping Lumber.

Description: Patent for a device for dipping lumber in a "soda" bath for preventing mildewing that allows the operator of the sawmill to determine which logs go through the bath.
Date: August 9, 1910
Creator: Baten, William Lucian
Partner: UNT Libraries Government Documents Department

Process of Making Artificial Fuel

Description: Patent for process of creating artificial fuel and the resulting product.
Date: March 11, 1902
Creator: Steiner, Robert
Partner: UNT Libraries Government Documents Department
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