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Wire Stretcher.

Description: Patent for a wire stretcher with means to easily adjust a slidable rack bar, including instructions and illustrations.
Date: March 13, 1917
Creator: Harper, John H.
Partner: UNT Libraries Government Documents Department

Folding Washstand

Description: Patent for washstand that can fold up and be put away when not being used.
Date: February 13, 1917
Creator: Ewell, Ocie D.
Partner: UNT Libraries Government Documents Department

Musical Notation

Description: Patent for a notation which provides "a sheet in which the tones in their successive order of degrees by septenaries comprising the limit of the human voice from low to high pitch or from base to treble will be graphically indicated, and also to furnish a means whereby mechanical transposition of the notated characters may be effected" (lines 14-20).
Date: September 13, 1892
Creator: Robberson, John W.
Partner: UNT Libraries Government Documents Department

Cotton-Chopping Machine

Description: Patent for a cotton "wheeled cultivator" (line 14-15) attachment which allows users to make adjustments to the cultivator blades, including illustrations.
Date: April 13, 1920
Creator: Sims, James G.
Partner: UNT Libraries Government Documents Department
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