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Pumping Jack

Description: Patent for pumping jacks relating to oil wells.
Date: January 2, 1917
Creator: McCuin, William H.
Partner: UNT Libraries Government Documents Department

Railway-Rail Joint

Description: Patent for improving the construction and increase the efficiency and utility of railway-rail joints.
Date: January 2, 1906
Creator: Verneuil, Edward Benjamin
Partner: UNT Libraries Government Documents Department
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