3 Matching Results

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Tool for Drilling Wells.

Description: Patent for improvement in "tools for drilling or boring Artesian, oil, and other deep wells; and it has for its object to prevent the loss of the drill or auger or of any portion of the drill-rods" (lines 9-13) via an "improved means for connecting the tool to the lower end of the drill-rod" (lines 15-16) including illustrations.
Date: July 16, 1889
Creator: McLane, Hiram H.
Partner: UNT Libraries Government Documents Department

Bale-Core-Operating Device

Description: Patent for bale core operating device which improves the bale core quality around which the bale is formed, including illustrations.
Date: July 16, 1918
Creator: Taft, John A.
Partner: UNT Libraries Government Documents Department

Automobile Direction-Signal.

Description: Patent for an invention of a simple signal that allows drivers to indicate they are turning left or right to the vehicle behind them, illustrations included.
Date: July 16, 1918
Creator: Vaca, Pedro
Partner: UNT Libraries Government Documents Department
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