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Process of Treating Wood.

Description: Patent for less expensive chemical wood treatment that will not leach out, will make wood more durable, and preserve wood for multiple uses including marine construction.
Date: August 23, 1921
Creator: Chandler, Asa C. (Asa Crawford), 1891-1958
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Roller Boring-Drill.

Description: Patent for a roller boring-drill with improved arrangement of cutters on the head, and formation of teeth on the cutters. This new head design is better for drilling formations that are not brittle.
Date: August 23, 1921
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Farm-Gate

Description: Patent for an improved hinge mounting for a gate to swing and to served as a stay or brace connecting a pair of posts supporting the gate. Also, a provision of a novel mounting and operating means for such a gate, including springs for raising the operating levers on the gate used to move the gate.
Date: August 23, 1921
Creator: Rawley, Fleming C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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