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US Patent: 1,504,401
Combined Pliers and Wrench
Patentees:
William C. Tull (exact or similar names) - Stanton, NE
Roy J. Bristol (exact or similar names) - Stanton, NE

USPTO Classifications:
81/379, 81/402

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 30, 1923
Granted: Aug. 12, 1924

Patent Pictures:
Tull and Bristol Pat. Aug. 12, 1924
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Description:
The adjustment is a nut on a threaded shaft at the end of the handle. A loop-ended link bears against the adjusting nut. This patent evolved into Tull & Bristol's 1926 patent (no. 1,568,934).

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