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US Patent: 282,768
Stud Wrench
Wrench for Holding and Turning Round Bodies
Patentee:
John H. Pollard (exact or similar names) - Cedar Rapids, IA

USPTO Classifications:
81/98

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank G. Clark
J. M. St. John
S. M. Endicott

Patent Dates:
Applied: May 22, 1883
Granted: Aug. 07, 1883

Patent Pictures:
John H. Pollard patent August 7, 1883
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Description:
The curved face on the handle forces the stud against a "V" shaped surface of a swinging loop. The design is similar to self-adjusting hook jaw pipe wrenches except the head portion is totally closed.

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