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US Patent: 464,168
Pipe Wrench
Patentee:
Abel C. Whittier (exact or similar names) - Boston, MA

USPTO Classifications:
81/167, 81/97

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Irving H. Fay
J. R. Brittain
L. A. Washburne
Jas. H. Churchill
Patent Dates:
Applied: Jun. 03, 1891
Granted: Dec. 01, 1891

Patent Pictures:
Abel C. Whittier patent December 1, 1891
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Description:
Screw-adjust hook jaw, with a spring-loaded pivoted jaw in the handle frame.

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