UNT Libraries Government Documents Department - 4 Matching Results

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Road-Grader.

Description: Patent for a road grader, which will "excavate a ditch at the side of a road, and distribute the dirt from said ditch at a proper gradient upon the road" (lines 11-14).
Date: January 31, 1911
Creator: Fender, John Brown

Cooling Apparatus.

Description: Patent for a cooling apparatus for food that uses the process of evaporation of water to cool the apparatus.
Date: April 4, 1911
Creator: Steen, Mary L.

Aerodrome

Description: Patent for an aerodrome/helicopter with improved wing design.
Date: June 27, 1911
Creator: Snow, Guy

Proportioning Weighing-Machine

Description: Patent for a proportioning weighing machine. Illustrations included.
Date: August 22, 1911
Creator: Cardwell, Robert M. & Tholen, John Ben.
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