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Mechanical Dentistry.

Description: Patent for new and improved mechanical dentistry. This design consists in "[a] dental plate provided with a series of holes or perforations and a continuous groove upon the upper surface of the plate communicating with the holes or perforations therein" (lines 62-65).
Date: May 18, 1886
Creator: Mayfield, William Dudley
Partner: UNT Libraries Government Documents Department