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Hydrocarbon-Burner

Description: Patent for a hydrocarbon burner. Illustrations included.
Date: July 25, 1911
Creator: Herpin, Edward Peter
Partner: UNT Libraries Government Documents Department

Four Wheel Drive Mechanism

Description: Patent for giving engine power equally to all four wheels of a vehicle.
Date: February 25, 1919
Creator: Littlejohn, Lonzo B.
Partner: UNT Libraries Government Documents Department
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