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US Patent: 320,872
Pipe Wrench
Patentee:
James F. Guthrie, Jr. (exact or similar names) - Cambridge, MA

USPTO Classifications:
30/187, 81/91.1, 81/91.2

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. S. Bellows
Wm. H. Quincy
Edwin W. Brown
Patent Dates:
Applied: Aug. 30, 1884
Granted: Jun. 23, 1885

Patent Pictures:
James F. Guthrie, Jr. patent June 23, 1885
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Description:
The lever handle opens and closes the jaws. The connecting point between the movable jaw and handle has a sleeve bearing.

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