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Boll-Weevil Exterminator

Description: Patent for an air suctioning instrument that exterminates boll-weevil and other insects that infest cotton crops. Illustrations included.
Date: May 29, 1917
Creator: Goar, Robert Keith
Partner: UNT Libraries Government Documents Department

Cattle Guard

Description: Patent for a cattle guard. This invention is for use with railways to prevent passage of stock over the tracks. Illustration included.
Date: December 4, 1906
Creator: Jungman, Leo A.
Partner: UNT Libraries Government Documents Department
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