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US Patent: 361,258
Pipe Wrench
Patentee:
Samuel J. Benson (exact or similar names) - Washington, DC

USPTO Classifications:
81/146, 81/97

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. F. Gardner
W. E. Stearns
N. D. Adams
Benj. F. Gardner
Patent Dates:
Applied: Jan. 27, 1887
Granted: Apr. 19, 1887

Patent Pictures:
Samuel J. Benson patent April 19, 1887
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Description:
Quick adjust with the adjustment held by a spring; the gripping surface on the movable jaw is positioned by a second spring.

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