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Improvement in plow-stocks.

Description: Patent for an improvement on the plow stock that allows the user to use different plow blades and standards, depending on what kind of plowing needs to be done. Includes illustrations.
Date: August 15, 1876
Creator: Price, James Alvin
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a plow with a convex moldboard and a landside, or shoe, which in combination acts as a turning plow and subsoiler.
Date: June 12, 1883
Creator: Kennedy, George Finlay
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a new and improved plow. This design consists in "the combination of the center bar, the adjustable sweep, and the saddle . . . [the] longitudinal center bar extending below the base of the sweep and having the pointed nose and the fan-shaped lip" (lines 85-90).
Date: March 5, 1889
Creator: Stewart, John A.
Partner: UNT Libraries Government Documents Department

Combined Plow and Harrow.

Description: Patent for combined plows and harrows, which operates to break up the earth after it has been plowed, while the plow is opening another furrow. This invention also features the provision of a harrow attachment which can be readily applied to or removed from various types of plows.
Date: October 21, 1913
Creator: Rohrer, Darius B.
Partner: UNT Libraries Government Documents Department
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