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Automatic Pipe Coupling
Patent for improvement on the methods of controlling oil flow.
Date:
September 2, 1919
Creator:
Childs, William L.
System:
The Portal to Texas History
Well-Boring Apparatus
Patent for a new and improved well-boring apparatus that rotates a drill stem. The drill is then elevated when it is desired to unscrew the joints.
Date:
September 2, 1919
Creator:
Headrick, James O.
System:
The Portal to Texas History