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US Patent: 48,017
Pipe Wrench
Patentee:
Samuel F. Gamage (exact or similar names) - Boston, MA

USPTO Classifications:
74/522, 81/403

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
Nahum M. Dow - Boston, MA
Samuel F. Gamage - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
J. L. Newton
Nahum M. Dow

Patent Dates:
Granted: May 30, 1865

Patent Pictures:
Samuel Gamage Pat. May 30, 1865
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Description:
An adjustable pipe tongs; a knurled nut is the adjuster, and the pivot is a stud at right angles to the line of the adjusting threads. The specifications note the adjustment mechanism is contained within the body of the the tool and hence less likely to be damaged.

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