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Toy

Description: Patent for a toy particularly adapted for the amusement of small children.
Date: May 29, 1914
Creator: Boyle, Frank J.
Partner: UNT Libraries Government Documents Department

Internal-Combustion Engine

Description: Patent for an internal-combustion engine with a novel form of rotary valve and other meaningful improvements to a combustion engine.
Date: September 29, 1914
Creator: Clough, George Golden
Partner: UNT Libraries Government Documents Department
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