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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

Surgical Instrument

Description: Patent for a surgical instrument for increasing dilation of the uterine cavity and for taking medical tampons in and out.
Date: December 3, 1912
Creator: McMordie, William Emmett
Partner: UNT Libraries Government Documents Department
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