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in subjects: "plows"  
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Plow.

Description: Patent for a plow that improves the type of plow employing "a moldboard and plowpoint or share bolted to a standard" (lines 9-11), with illustrations. This patent improves upon previous patents numbered 974,675 and 974,676 issued to the same inventor on November 1, 1910.
Date: January 6, 1920
Creator: Kelly, Robert Marvin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow

Description: Patent for a plow which plows two furrows simultaneously. An axle is mounted on wheels, and the two adjustable plow beams pivot from the axle so that furrow depth and the width between furrows can be adjusted. Patent includes illustrations.
Date: November 30, 1920
Creator: Henderson, Warren H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grass Destroyer

Description: Patent for mechanical grass destroying equipment. This machine produces the results of harrowers, diggers and plows to destroy unwanted plants such as Bermuda and Jackson grass by "sifting the earth off their roots and dropping it back on the ground, and collecting the tops and the roots." (lines 15-17).
Date: March 2, 1920
Creator: Coker, Alvin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton Stalk Cutter and Insect Killer

Description: Patent for improvements to mechanical cotton stalk cutting and insect destroying apparatus. The machine's object is "cutting the stalks into small pieces, and the crushing the stalks so as to crush and destroy insects which may be upon the withered stalks." (lines 26-29).
Date: September 5, 1922
Creator: Batla, Thomas H. & Holan, Heny J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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