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US Patent: 171,333
Pipe-Wrench
Patentee:
J. Atwood White (exact or similar names) - Dorlan's Mills, PA

USPTO Classifications:
81/146, 81/97

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : pipe wrenches

Assignees:
Samuel B. Dorlan - Dorlan's Mills, PA
J. Atwood White - Dorlan's Mills, PA

Manufacturer:
Not known to have been produced

Witnesses:
Lewis F. Brous
John A. Wiedersheim
A. P. Grant
Patent Dates:
Applied: Aug. 26, 1875
Granted: Dec. 21, 1875

Patent Pictures:
J. Atwood White Pat. Dec. 21, 1875
USPTO (New site tip)
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Description:
The movable jaw of this adjustable hook-jaw wrench is held in place by a spring inside a "U"-shaped frame.

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