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Wrench.
Patent for improving wrenches to reach "parts of machinery [that are] ordinarily difficult [to] access" (lines 12-13), specifically "used in removing or replacing the nut or nuts on a fourth connecting rod of a Ford motor [ . . . ] such rod being in a position difficult to reach by an ordinary wrench" (lines 17-21).
Date:
October 26, 1920
Creator:
Slagle, George R.; Garner, Arthur N. & Rushin, Willliam R.
System:
The Portal to Texas History