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Steam Plow

Description: Patent for Steam-Plow. "The object of my invention is to provide a new and improved steam-plow, which is simple in construction, has great tractive force, can-not slip, and plows very rapidly and perfectly." (lines 7-10)
Date: August 3, 1886
Creator: Lay, William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Motor

Description: Patent for a "new and improved propeller for boats which is simple in construction, prevents a loss of power, and is thus very economical." (lines 8-10). Includes instructions and illustrations.
Date: unknown
Creator: Lay, William
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Portable Derrick.

Description: Patent for improvements to derricks which make them portable and easily manipulated. Includes instructions and illustrations.
Date: December 8, 1891
Creator: Hurd, George Murray
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Post Hole Digger

Description: Patent for post hole digger with a simple construction which can be manufactured at a comparatively smaller cost.
Date: December 22, 1914
Creator: Day, James M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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