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Tractor Attachment

Description: Patent for a tractor attachment. The purpose of this attachment is to lift up the back wheels of the driving vehicle and improving the power of the vehicle.
Date: December 17, 1918
Creator: Thomas, Samuel Shelby
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Washer.

Description: Patent for a hinged washer, which can be removed from a bolt without removing the nut.
Date: February 8, 1910
Creator: Vannoy, John B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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