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in creator/contributor: "Duckworth, Z. M."  
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Metal Storage-Tank

Description: Patent for a multi-part/multi-section metal storage tank (also known as a knock-down tank). Parts are secured by a clamp.
Date: June 13, 1911
Creator: Harry, Jefferson D.
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Partner: UNT Libraries Government Documents Department

Electric Heater

Description: Patent for an electric heater that is insulated from foreign bodies or fluids. Illustrations included.
Date: February 28, 1911
Creator: Harvie, Arthur H. & Davis, William G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton-Gin.

Description: Patent for cotton gin, which includes a huller roller, seed bar, and seed grate to separate and remove seeds from the cotton. Ginning points/pins are used instead of saws. Due to the positioning of the ginning points/pins, the surface of the ginning cylinder in its entirety is available for ginning and there are fewer mechanical friction points.
Date: October 17, 1911
Creator: Hollingsworth, Joseph C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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