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Packing Ring

Description: Patent for improved packing rings for pistons.
Date: October 16, 1915
Creator: Westmoreland, Ernest T.
Partner: UNT Libraries Government Documents Department

Gas Generating Apparatus

Description: Patent for a tool designed to generate small volumes of gases.
Date: October 16, 1915
Creator: McFarland, J. W.
Partner: UNT Libraries Government Documents Department
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