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Valve for Engines.

Description: Patent for certain new and useful improvements in valves for steam engines, including instructions and illustrations.
Date: November 8, 1898
Creator: Allen, Walter J.
Partner: UNT Libraries Government Documents Department

Well-Tube

Description: Patent for a well tube.
Date: April 8, 1903
Creator: Fox, Edward P.
Partner: UNT Libraries Government Documents Department

Domestic Boiler.

Description: Patent for a boiler for boiling milk and other liquids prone to boiling over, which prevents the overflow of liquid from the boiler.
Date: October 8, 1907
Creator: Rahm, Phillip
Partner: UNT Libraries Government Documents Department
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