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US Patent: 432,070
Pipe Wrench
Patentee:
Patrick Henry Quinlan - New Orleans, LA

USPTO Classifications:
81/167, 81/356, 81/361, 81/404

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
P. I. Dashiell
T. E. Turpin
F. L. Richardson
W. Morgan Gurley

Patent Dates:
Applied: Sep. 26, 1889
Granted: Jul. 15, 1890

Patent Pictures:
Patrick Henry Quinlan patent July 15, 1890
USPTO pdf tiff
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Description:
The off-center connection between the lever handle and jaw provides enough movement to grip and relax the grip, whatever adjustment has been made by the screw adjustment for size.

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