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Pump-Plunger

Description: Patent for a pump-plunger.
Date: April 7, 1903
Creator: Scott, Eugene
Partner: UNT Libraries Government Documents Department

Tax-Calculating Device

Description: Patent for a tax calculating device that will calculate the percentages of the total tax that need to go to different agencies.
Date: April 23, 1912
Creator: Goss, George W.
Partner: UNT Libraries Government Documents Department
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