UNT Libraries Government Documents Department - 4 Matching Results

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Patent for a recipe for insecticide for the Mexican Cotton-Boll Weevil.

Date: May 14, 1912

Creator: Newell, Wilmon

Patent for a locking device for forms that will not crush the edges of circular forms.

Date: August 27, 1912

Creator: Irvin, Thomas H.

Patent for an improvement to reversible plows. The plow specified is capable of throwing dirt to both the left and right sides.

Date: January 9, 1912

Creator: Sramek, Jacob

Patent for a formula for an insecticide for the Mexican cotton boll weevil.

Date: March 4, 1912

Creator: Newell, Wilmon