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Well-Screen
Patent for a modification to Mr. Layne's previous Patent No. 1,062,717, including illustrations.
Date:
February 24, 1914
Creator:
Layne, Mahlon E.
System:
The Portal to Texas History
Drill Bit
Patent for a drill bit that can pass through the drill stem, making the process of drilling faster and easier.
Date:
February 24, 1920
Creator:
Clements, Frank L., Jr.
System:
The Portal to Texas History