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Dipping-Vat.

Description: Patent for dipping vat used on live animals to remove insect infestation with a reduced risk of injury to the animal.
Date: October 18, 1919
Creator: Mullins, Thomas L.
Partner: UNT Libraries Government Documents Department

Fruit-Jar and Bottle Cleaner.

Description: Patent for a cleaning device that navigates narrow openings of containers, such as bottles and jars, and opens to clean the interior walls of the receptacle.
Date: March 4, 1919
Creator: Hunter, Walter L.
Partner: UNT Libraries Government Documents Department

Railroad Tie

Description: Patent for an improved railroad tie. The improved railroad tie will be more resilient, with a housing made of pressed metal.
Date: November 18, 1919
Creator: Autrey, Benjamin P.
Partner: UNT Libraries Government Documents Department
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