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US Patent: 362,278
Wrench
Pipe and Nut Wrench
Patentee:
William Humphreys (exact or similar names) - Waterford, NY

USPTO Classifications:
81/98

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A E. Dowell
Phil. C. Dieterich
Lysander Button
Geo. W. Eddy
Patent Dates:
Applied: Oct. 12, 1886
Granted: May 03, 1887

Patent Pictures:
William Humphreys patent May 3, 1887
USPTO (New site tip)
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Description:
A hook-jaw pipe wrench with a short secondary link between the handle and the hook jaw.

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