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Wire-Tightener.

Description: Patent for improvements in wire-tighteners with an illustration. Specifically, the patented improvement is for a "device" that can "be used for the purpose of tightening strands of wire of a wire fence" (lines 11-14).
Date: June 24, 1919
Creator: Wilson, James G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Telegraph-Repeater

Description: Patent for a telegraph repeater. This invention improves repeaters by eliminating lag by simplifying the apparatus which increases capacity and clarity in transmission by maintaining a larger current strength.
Date: June 24, 1919
Creator: McKibben, Charles W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill-Bit

Description: Patent for an improved kind of drill bit that is more durable against rock. The bit's cutting rollers have a frusto-conical shape, and are also detachable.
Date: January 24, 1919
Creator: Humason, Granville A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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