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US Patent: 32,453
Pipe Wrench
Patentee:
George B. Phillips - Newark, NJ

USPTO Classifications:
81/97

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

Assignees:
Jno. S. Littell - Newark, NJ

Manufacturer:
Not known to have been produced

Witnesses:
G. A. Meeker
William Bradshaw

Patent Dates:
Granted: May 28, 1861

Patent Pictures:
George B. Phillips Pat. May 28, 1861
USPTO pdf tiff
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Description:
The base of the movable jaw has teeth that engage notches in the shank, with the adjustment held by a sliding wedge. The gripping portion of the movable jaw has an adjustable tension spring and a thumb lever.

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