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US Patent: 382,391
Pipe Wrench
Patentee:
George G. Smith (exact or similar names) - St. Albans, VT

USPTO Classifications:
81/117

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. E. Finley
A. N. Jesbera

Patent Dates:
Applied: Aug. 29, 1887
Granted: May 08, 1888

Patent Pictures:
George G. Smith patent May 8, 1888
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Description:
The jaws remain parallel. The connecting link adjusts the size range. The final size adjustment and gripping force is accomplished by sliding the swinging jaw back along the main shank.

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