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Patent for a sweep-stock attachment for plows, which can be adjusted to different lengths without using a tool.

Date: July 20, 1909

Creator: Hewitt, John Henry

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Patent for a cultivator designed to "regulate the pitch at which the sweep blades enter the ground" (lines 13-15). Illustrations included.

Date: March 22, 1910

Creator: Hewitt, John Henry

Item Type: Patent

Partner: UNT Libraries Government Documents Department