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Boll-Weevil Exterminator

Description: Patent for removing dead bolls, insects and other parasites from growing plants.
Date: February 26, 1918
Creator: Harper, William E.
Partner: UNT Libraries Government Documents Department

Weed-Cutting Attachment for Plows.

Description: Patent is for "weed cutting devices for plows, and has for its object to provide the shovel of a plow or cultivator with blades or knives, which are adapted to enter the soil a slight distance and cut down or uproot all weeds or grass and at the same time to smooth or pulverize the soil" (lines 12-18).
Date: August 26, 1902
Creator: Robinson, John M.
Partner: UNT Libraries Government Documents Department

Spring Bed-Bottom.

Description: Patent for a simple, inexpensive, and durable spring bet bottom that consists of a frame, slats, separate inverted cone-shaped coiled springs that sit on the slats and that loop together at the tops, clamps that hold the springs onto the slats, and hooks that hold the upper coils to the frame.
Date: December 26, 1893
Creator: Crowder, George Washington
Partner: UNT Libraries Government Documents Department
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