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The Lacasa Area, Ranger District North-Central Texas
This document reports the economic geology of the Lacasa area, Ranger district in North-Central Texas, with fieldwork done in April and May of 1919.
Date:
December 23, 1921
Creator:
Ross, Clarence S.
Object Type:
Report
System:
The UNT Digital Library
Grapple.
Patent for improving grapples for regaining tools, particularly those that can be hidden and submerged.
Date:
April 26, 1921
Creator:
James. C. Ginter.
Object Type:
Patent
System:
The Portal to Texas History
Bailer.
Patent for improved bailer for deep wells (e.g., oil wells), cheaper to use and manufacture, with a better delivery gate and improved method for triggering gate closure upon bailer withdrawal.
Date:
July 26, 1921
Creator:
Swartz, Ira
Object Type:
Patent
System:
The Portal to Texas History