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Hydraulic Pump

Description: Patent for a hydraulic pump. Illustration included.
Date: March 7, 1905
Creator: Russell, Robert H.; Arnold, Clifton W. & Sheldon, Walter L.
Partner: UNT Libraries Government Documents Department

Passenger Recorder

Description: Patent for a passenger recorder. This invention is designed to keep track of the flow of passengers entering on and off passenger vehicles. Illustration included.
Date: March 7, 1905
Creator: Jackson, Charles F.
Partner: UNT Libraries Government Documents Department
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