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Listing-Plow.

Description: Patent for a listing plow, "more particularly an improvement upon the structure disclosed in Patent No. 866,679, issued to [Gottfried Persson] on September 24, 1907" (lines 9-11), including instructions and illustrations.
Date: April 22, 1913
Creator: Persson, Gottfrid
Partner: UNT Libraries Government Documents Department

Puzzle.

Description: Patent for a wire puzzle, where the user tries to free a ring from the inside of the wires.
Date: April 5, 1910
Creator: Hicks, Rufus Lee
Partner: UNT Libraries Government Documents Department

Quilting-Frame.

Description: Patent for an improvement in quilting-frames by making one roller adjustable in which it can be turned in either direction from the opposite side of the device. Illustration is included.
Date: April 7, 1891
Creator: Martin, Enoch
Partner: UNT Libraries Government Documents Department

Cuspidor Handle and Carrier

Description: Patent for Cuspidor Handle and Carrier.
Date: April 9, 1912
Creator: Old, Earnest
Partner: UNT Libraries Government Documents Department

Harvester.

Description: Patent for Harvester. "This invention relates to harvesters, particularly designed for harvesting beets, potatoes or analogous agricultural products and the primary object of the invention is to provide a machine which will harvest a crop of agricultural products of the edible root type with a minimum amount of manual labor." (line 2)
Date: April 23, 1918
Creator: Malone, Tom Anderson
Partner: UNT Libraries Government Documents Department

Reagent for Liquid-Battery Cells.

Description: Patent for a method of producing a "cheap and efficient substitute for copper sulfate for use in battery cells" (lines 14-16).
Date: April 19, 1921
Creator: Humphrey, David L. & Pittman, Carl L.
Partner: UNT Libraries Government Documents Department

Adjustable Window-Scaffold

Description: Patent for an adjustable window scaffold. Illustrations included.
Date: April 11, 1911
Creator: Wright, Scott W.
Partner: UNT Libraries Government Documents Department
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