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Improvement in Machines for Destroying Insects.

Description: Patent for "new and useful improvements in insect destroyers and more particularly to that class especially adapted to the extermination of boll-weevils" (lines 9-12) including instructions and illustrations.
Date: December 29, 1914
Creator: Nail, Louis L.
Partner: UNT Libraries Government Documents Department

Railway Construction.

Description: Patent for "new and useful improvements in Railway Constructions" (lines 6-7) including instructions and illustrations.
Date: December 5, 1916
Creator: Oliver, Lavan; Oliver, Tilden B. & West, Gorge W.
Partner: UNT Libraries Government Documents Department

Railroad-Switch

Description: Patent for a railroad switch that is easier to use and more effective than the "common stub switch" (lines 10-11), thereby reducing damage.
Date: December 16, 1919
Creator: Cuellar, Samuel D.
Partner: UNT Libraries Government Documents Department
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