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Pipe-Wrench.
Patent for the improvement of pipe wrenches necessary for use in well drilling or other circumstances where a wrench of strong construction is needed. This patent provides for a pipe wrench that can be easily adjusted to fit pipes of differing sizes and is easily manipulated for use regardless of direction.
Date:
December 9, 1919
Creator:
Carmichael, Robert E.
System:
The Portal to Texas History