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Method of Repairing Circular-Saw Teeth.

Description: Patent for enabling the teeth of circular saws to be drawn out and hammered for repair, including illustration.
Date: June 10, 1856
Creator: Parry, M. L.
Partner: UNT Libraries Government Documents Department

Improvement in Cultivators.

Description: Patent for the improvement of the rotary cultivator with adjustable thinning-points and rotating cutter, including illustration.
Date: April 10, 1855
Creator: Morrel, A. H.
Partner: UNT Libraries Government Documents Department

Improvement in Cultivators.

Description: Patent for a triangle shaped cultivator with removable mold-boards that can be used as a plow and scraper, including illustration.
Date: May 10, 1859
Creator: Doss, William C.
Partner: UNT Libraries Government Documents Department

Improvement in Corn-Planters.

Description: Patent for a corn-planter that allows the seed to be placed in a hopper and disperses the seed through a cylinder that is connected to a wheel to place and cover the seed, including illustration.
Date: May 10, 1859
Creator: Gilbert, R. B.
Partner: UNT Libraries Government Documents Department
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