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Saw-Filing Machine.

Description: Patent for a saw filing machine for cotton gin saws.
Date: December 27, 1910
Creator: Seifert, Henry
Partner: UNT Libraries Government Documents Department

Automatic Stopping Mechanism for Trains

Description: Patent for an automatic stopping mechanism for trains. Illustration included.
Date: October 25, 1910
Creator: Mingo, William, Jr.
Partner: UNT Libraries Government Documents Department
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