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US Patent: 417,652
Pipe Wrench
Patentee:
James R. Smith (exact or similar names) - Beaumont, TX

USPTO Classifications:
81/98

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. S. Duvall
O. De Young
A. Schwaner
John Imivic

Patent Dates:
Applied: May 21, 1889
Granted: Dec. 17, 1889

Patent Pictures:
James R. Smith patent December 17, 1889
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Description:
Swinging jaw "self-adjusting" pipe wrench with several gripping surfaces.

Corresponding British patent GB-189005834 was registered April 17, 1890.

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