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in subjects: "plows"  
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Listing-Plow.

Description: Patent for a listing plow, "more particularly an improvement upon the structure disclosed in Patent No. 866,679, issued to [Gottfried Persson] on September 24, 1907" (lines 9-11), including instructions and illustrations.
Date: April 22, 1913
Creator: Persson, Gottfrid
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sulky-Plow

Description: Patent for the design of a plow that can "overcome obstacles without injury to"(lines 14-15) to the machine. It also includes a new design for a plow foot spring, in addition to an element that allows the foot spring to be adjusted quickly by there operator.
Date: April 24, 1917
Creator: Sanders, John T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Moldboard

Description: Patent for improvements in plow mold-boards, specifically for shedding sticky soil, and includes illustrations and description.
Date: April 8, 1913
Creator: Martin, William A. & Coleman, Robert J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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