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Closet-Flushing Mechanism.

Description: Patent for a water closet flushing mechanism, which prevents the water from standing in the toilet bowl where it is liable to freeze in cold weather.
Date: June 20, 1911
Creator: Parker, Thomas H.
Partner: UNT Libraries Government Documents Department

Air-Brake Coupling

Description: Patent for an air brake coupling for use on trains that opens the air valves when the coupling is attached.
Date: June 20, 1911
Creator: Winton, Robert A.
Partner: UNT Libraries Government Documents Department

Airship

Description: Patent for an airship that is equipped with gas bags to control the ascent and descent of the airship and make it float in case of landing in the water.
Date: June 11, 1912
Creator: Bradshaw, John F. W.
Partner: UNT Libraries Government Documents Department
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