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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

Patent for a coupling frame for planters for attaching two planters together.

Date: December 13, 1910

Creator: Barkley, Robert A.

Partner: UNT Libraries Government Documents Department