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Heydrick's map of Burkburnett pool extension.

Description: Map shows oil well and dry hole locations, land owners, tract numbers, railroad lines and roads, and some businesses across Wichita County; illustrations of some oil company buildings at their locations on the map; adjacent counties and landowners on north side of Red River in Oklahoma; street layout and oil wells in town of Burkburnett. Includes legend. Scale [ca. 1:24,000].
Date: 1919
Creator: Heydrick Mapping Company
Partner: University of Texas at Arlington Library

Gripping Tool

Description: Patent for improvements to gripping tools for tubing and other round objects with illustrations.
Date: September 26, 1919
Creator: Drake, Charles W.
Partner: UNT Libraries Government Documents Department

Device for Recovering Tools from Wells.

Description: Patent for a device to lift and recover tools, such as drill-bits, that have been dropped or lost in wells. The device features two prongs that may be engaged to grip or secure in a "biting hold" (line 50) various objects, illustrations included.
Date: September 9, 1919
Creator: Scott, Augustus B.
Partner: UNT Libraries Government Documents Department
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