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US Patent: 61,715
Improvement in Pipe Wrenches
Patentee:
John W. Close (exact or similar names) - Buffalo, NY

USPTO Classifications:
81/179

Tool Categories:
wrenches : wrench components : wrench jaw components
wrenches : alligator wrenches
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jay Hyatt
James C. Brown
Patent Dates:
Granted: Feb. 05, 1867

Patent Pictures:
John W. Close Pat. Feb. 5, 1867
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Description:
The wrench fits in the general category of alligator wrenches; the patented feature is the sliding jaw member.

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