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US Patent: 298,294
Pipe Wrench
Patentee:
James Doyle (exact or similar names) - New York, NY

USPTO Classifications:
81/68

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
James Doyle - New York, NY
Patrick McNamara - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Henry Meyer
Charles R. Searle
Patrick McNamara
Thos. E. O'Brien
August C. Hassey

Patent Dates:
Applied: Oct. 08, 1883
Granted: May 06, 1884

Patent Pictures:
James Doyle patent May 6, 1884
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Description:
The patent presents alternate means of adjusting and holding the adjusted position of the end of the chains on a chain pipe wrench.

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