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Nut Lock.

Description: Patent for an improved nut lock that prevents nuts from loosening. The invention is a combined nut lock and washer with spring plate, including illustrations.
Date: January 14, 1919
Creator: Teague, Isaac E.
Partner: UNT Libraries Government Documents Department

Heel-Attaching Means.

Description: Patent for a new means of using screws and plates to securely attach wooden heels to women's shoes, including illustrations.
Date: May 14, 1918
Creator: Dickerson, Harry P.
Partner: UNT Libraries Government Documents Department

Grading-Machine.

Description: Patent for improvement in grading machines in which the speed of the drum, the speed of the drive wheels and the distance of the axis of the drive wheels can all be adjusted. Illustration is included.
Date: October 14, 1913
Creator: Foley, Charles H.
Partner: UNT Libraries Government Documents Department

Attachment for Vehicle-Seats.

Description: Patent for "a vehicle seat and more particularly to a device securable to the under portion of a seat and engaging the side walls of the wagon body so that the seat will be prevented from shifting transversely of the vehicle" (lines 9-14).
Date: July 14, 1914
Creator: Jackson, George
Partner: UNT Libraries Government Documents Department
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