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US Patent: 600,968
Pipe Wrench
Patentee:
Samuel Montgomery (exact or similar names) - New York, NY

USPTO Classifications:
81/186, 81/99

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
M. A. Wilson
A. M. Sherry
Worth Osgood
Patent Dates:
Applied: Jul. 15, 1897
Granted: Mar. 22, 1898

Patent Pictures:
Samuel Montgomery patent March 22, 1898
USPTO (New site tip)
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Description:
Self-adjusting hook jaw pipe wrench with a spring working to close the jaws.

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