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Pump-Valve Mechanism.

Description: Patent for a pump valve mechanism for use in deep wells, which can be easily removed for cleaning and repair,
Date: August 13, 1907
Creator: Sheen, Davis
Partner: UNT Libraries Government Documents Department

Float-Valve.

Description: Patent for improved float valve. This patent is especially adapted for use in water tanks and other receptacles for providing water for stock or for any other purposes.
Date: July 13, 1915
Creator: Sharp, Harry Q.
Partner: UNT Libraries Government Documents Department
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