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US Patent: 494,529
Pipe Wrench
Patentee:
Henry F. Jenks (exact or similar names) - Pawtucket, RI

USPTO Classifications:
81/167, 81/92

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench components : wrench jaw components
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George E. Lovejoy
Charles Harrigan
Socrates Scholfield
Patent Dates:
Applied: Aug. 20, 1892
Granted: Mar. 28, 1893

Patent Pictures:
Henry F. Jenks patent March 28, 1893
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Description:
The adjusting nut for the movable jaw also acts a retainer for the rocking jaw surface of the lower "fixed" jaw.

Kenneth Cope's "American Wrench Makers 183-1930" indicates Jenks produced the wrench.

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