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Improvements in Target-Controlled Roundabouts

Description: Patent for a target-controlled roundabout comprised of a "revoluble member arranged to be operated by a plunger" (lines 11-12).
Date: March 12, 1912
Creator: Lero, Joe
Partner: UNT Libraries Government Documents Department

Process of Electrostatic Separation.

Description: Patent for new improvements to Processes of Electrostatic Separation, "particularly to a process where the comminuted material subjected to the influence of an electrostatic field" (lines 12-14) including instructions and illustrations.
Date: March 12, 1912
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department
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