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US Patent: 590,363
Wrench
Patentee:
Robert Foote Crosbie (exact or similar names) - Primghar, IA

USPTO Classifications:
81/111

Tool Categories:
wrenches : pipe wrenches
wrenches : alligator wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Archibald Crosbie, Jr.
Christopher R. West
John Buckler
C. Gerst
Patent Dates:
Applied: Jun. 19, 1897
Granted: Sep. 21, 1897

Patent Pictures:
R.F. Crosbie Pat. Sept. 21, 1897
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Description:
The adjusting screw moves a toothed bar which engages teeth on the movable jaws to open and close them.

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