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Steam Boiler

Description: Patent for a stem boiler. Illustration included.
Date: December 6, 1904
Creator: Stucky, Allan C.
Partner: UNT Libraries Government Documents Department

Coin Operating Vending Machine

Description: Patent for a coin operated vending machine. Illustration included.
Date: December 6, 1904
Creator: Davis, Alvah B.
Partner: UNT Libraries Government Documents Department
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