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Improvement in Plows.

Description: Patent for the improvement of the Rotary-Disk Cutters for plows that enable it to swivel and be supported by guides, including illustration.
Date: April 3, 1855
Creator: Hall, Thomas J.

Improvement in Gang-Plows.

Description: Patent for the improvement of the gang plow by the plows arrangement and pivoted beams to be adjustable for convenience, including illustration.
Date: May 1, 1855
Creator: Hall, Thomas J.

Improved Cultivating-Plow.

Description: Patent for a cultivating plow with a series of cutting-disks and digging-hoes, including illustration.
Date: March 25, 1856
Creator: Crenshaw, Micajah
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