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Process of Treating Roads, &c.

Description: Patent for Improved Process for Treating Roads, etc., "to provide means for preventing or retarding the formation of dust on roadways, and...to effect the formation of a road or road surface" (lines 8-13).
Date: July 29, 1913
Creator: Robeson, Jacob S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Propeller

Description: Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Date: July 23, 1912
Creator: Blake, David H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electric motor.

Description: Patent for improved electric motor used in motor vehicles "which may be associated directly with the driving-wheel of a motor-vehicle" (lines 40-41), bypassing the need for other power-transmitting mechanisms. Includes instructions and illustrations.
Date: July 20, 1897
Creator: Perret, Frank A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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