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Uterus-Battery.

Description: Patent for "a simple and compact electrical or galvanic device, adapted, when placed in the womb of a patient, to develop a mild electric action and thereby promote the flow of the menses and render the same regular and painless" (lines 16-19).
Date: May 22, 1894
Creator: Hinkley, Charles Samuel Whitney
Partner: UNT Libraries Government Documents Department

Range-Finder for Rifles.

Description: Patent for range-finder for rifles, with illustrations. The invention "is adapted for ready application to a rifle by producing a simple dovetailed groove in the stock or stock-tip, near the front end" (lines 9-12).
Date: May 22, 1883
Creator: Ord, Edward O. C., Jr. & Kress, John A.
Partner: UNT Libraries Government Documents Department
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