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Improvement in Vapor-Burners.

Description: Patent for an improvement in vapor burners used in self-generating gas burners.
Date: June 23, 1874
Creator: Sawyer, Frederick A.
Partner: UNT Libraries Government Documents Department

Improvement in Preparations of Chewing-Gum.

Description: The production of chewing-gum will become much simpler with the improved patent of chewing-gum.
Date: June 23, 1877
Creator: Cotter, Robert
Partner: UNT Libraries Government Documents Department
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