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Well Drilling Apparatus.

Description: Patent for a design of a compact well-drilling machine.
Date: April 17, 1914
Creator: Thorniley, Clarence W.
Partner: UNT Libraries Government Documents Department

Lavatory.

Description: Patent "relates to improvement in wash basins, tubs, sinks, trays, and the like and especially with reference to the provision of improved means for flushing the waste pipe or duct thereof and for preventing overflow in the case the supply of faucet or faucets should be left running..."
Date: April 6, 1915
Creator: Kavanagh, Joseph A.
Partner: UNT Libraries Government Documents Department

Cut-off Valve for Pipe-Lines

Description: Patent for cut-off valve for pipe-lines intended for oil companies.
Date: April 30, 1918
Creator: Hagern, Joseph F.
Partner: UNT Libraries Government Documents Department

Closet

Description: Patent for a dry closet. Illustrations included.
Date: April 2, 1912
Creator: Crow, Levi H.
Partner: UNT Libraries Government Documents Department
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