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Voice Recording and Reproducing Device.

Description: Patent for a voice recording "attachment for a moving picture camera, which, while a picture is being taken will produce [...] photographic record of sounds that appropriately accompany the picture" (lines 11-16), including illustrations.
Date: June 13, 1916
Creator: Walker, Jack L.
Partner: UNT Libraries Government Documents Department

Mandolin.

Description: Patent for certain new and useful improvements in mandolins, including instructions and illustrations.
Date: June 13, 1899
Creator: Simpson, Roy Berkeley
Partner: UNT Libraries Government Documents Department

Metal Storage-Tank

Description: Patent for a multi-part/multi-section metal storage tank (also known as a knock-down tank). Parts are secured by a clamp.
Date: June 13, 1911
Creator: Harry, Jefferson D.
Partner: UNT Libraries Government Documents Department

Refrigerator

Description: Patent for a refrigerator. This invention uses ice for cooling and designed to provided greater cooling efficiency. Illustration included.
Date: June 13, 1911
Creator: Baer, Sylvan Titche
Partner: UNT Libraries Government Documents Department
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