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Photographic Device.

Description: Patent for a photographic device, which allows multiple exposures to be made on a surface in a camera.
Date: December 12, 1911
Creator: Smith, William N.
Partner: UNT Libraries Government Documents Department

Horse-Detacher

Description: Patent for a horse detacher for horse-drawn vehicles. Illustrations included.
Date: June 6, 1911
Creator: Lindsey, John M.
Partner: UNT Libraries Government Documents Department
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