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Water-Heater.

Description: Patent for a water heater for use in creating steam for oil and gas boilers, which heats faster than previous models.
Date: April 5, 1910
Creator: Hardie, Jeffie Watkins
Partner: UNT Libraries Government Documents Department

Mechanical Toy Hoop

Description: Patent for improved features for mechanical toy hoops, particularly for toys utilizing trundling hoops.
Date: September 5, 1916
Creator: Giesecke, Leo
Partner: UNT Libraries Government Documents Department

Sectional Link.

Description: Patent for a sectional link that has been designed for the use on oil well drilling tools. It is designed to prevent bending of the link and from throwing it out of alignment which can damage the tools it is designed for.
Date: November 5, 1918
Creator: Thomson, John M.
Partner: UNT Libraries Government Documents Department

Bending-Machine.

Description: Patent for a new machine providing "a simple, efficient and easily operated fluid-pressure actuated machine" for the straightening of railway rails (lines 12-14)
Date: November 5, 1918
Creator: Keely, William
Partner: UNT Libraries Government Documents Department
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