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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 new and improved plow. This design "relates to double-mold-board plows, such as lister or middle-breaking plows. Its principle features are the depressed center bar, the removable point upon the center bar, and the removable shares" (lines 8-12).
Date: May 28, 1889
Creator: Tebbetts, Lewis B.; Pope, Charles H. & Stewart, John A.
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a new and improved plow. This design consists, "with the standard and blade, of the removable L-shaped landside bar or plate, having one part or arm secured by a bolt or otherwise between the upper part of the blade and standard and the other part or arm standing at about right angles backward to resist the mold-board thrust as a landside" (lines 5-12).
Date: March 4, 1890
Creator: Stewart, John A.
Partner: UNT Libraries Government Documents Department
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