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in subjects: "water heaters"  
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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

Water-Heater.

Description: Patent for a portable water heater "in which a circulation of water may be had, whereby the same may become readily heated for use in a bath tub or other receptacle." (lines 12-15)
Date: November 18, 1913
Creator: Ramsey, Lee
Partner: UNT Libraries Government Documents Department

Hot Water Heating System

Description: Patent for an improvement to open fire water heating systems in buildings.
Date: January 12, 1917
Creator: McChesney, Louis P.
Partner: UNT Libraries Government Documents Department

Portable Heater.

Description: Patent for a portable heater for heating water.
Date: March 7, 1911
Creator: Ellis, Frank B. & Walker, James L.
Partner: UNT Libraries Government Documents Department

Gas-Burner.

Description: Patent for gas burners that are made for water heaters to prevent "back firing" by building them so that they can be placed on the side of the heater rather than underneath it, so that liquid does not fall on the burner.
Date: May 23, 1916
Creator: Cochran, Harry A.
Partner: UNT Libraries Government Documents Department

Gas-Burner.

Description: Patent for improved gas-burning water heaters. Improvements are meant to "insure complete and economical combustion of gas and to "prevent water of condensation accumulating on the exterior of the coil of the water heater from dropping into the flame opening of the burner and casing injury to the screen thereof" (Lines 20-24).
Date: June 13, 1916
Creator: Cochran, Harry A.
Partner: UNT Libraries Government Documents Department

Electric Water-Heater.

Description: Patent for a new electric water heater that forces water to travel around heated wires in tubes, including illustrations.
Date: May 7, 1918
Creator: Valdes, Salvador M.
Partner: UNT Libraries Government Documents Department

Automatic Control for Gas Water-Heaters.

Description: Patent for improvements to "a gas control for instantaneous gas water heaters" (lines 9-10), including illustrations and instructions.
Date: June 17, 1919
Creator: Hamilton, Paul H.
Partner: UNT Libraries Government Documents Department

Combined Heater and Filter

Description: Patent for a combined heater and filter. This invention is used in a dentists office to regulate the water supply for at the dentists chair. Illustration included.
Date: February 21, 1911
Creator: Gambati, Olympio F.
Partner: UNT Libraries Government Documents Department

Combined Heater and Radiator

Description: Patent for a combined water heater and radiator. Illustrations included.
Date: April 16, 1912
Creator: Wheeler, Mary J.
Partner: UNT Libraries Government Documents Department
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