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Hog-Trough

Description: Patent for a feeding trough for pig sties. Illustrations included.
Date: March 11, 1913
Creator: Wilkinson, Duke A. & Austin, Ben A.
Partner: UNT Libraries Government Documents Department

Safety Stirrup

Description: Patent for various improvements in safety stirrups.
Date: May 20, 1913
Creator: Sipes, Alfred M.
Partner: UNT Libraries Government Documents Department

Flying-Machine.

Description: Patent for a flying machine consisting of a cigar-shaped balloon guided by a light-weight gasoline engine.
Date: August 12, 1913
Creator: Sipes, Alfred M.
Partner: UNT Libraries Government Documents Department
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