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US Patent: 598,304
Wrench
Patentee:
Isaac A. Cunningham (exact or similar names) - Antrim, OH

USPTO Classifications:
81/170, 81/62

Tool Categories:
wrenches : wrench adjustment types : angle adjustable wrenches
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. M. Holland
John F. Den Herwiel
G. A. Albaugh
G. W. Morrison

Patent Dates:
Applied: Feb. 25, 1897
Granted: Feb. 01, 1898

Patent Pictures:
Isaac A. Cunningham patent February 1, 1898
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Description:
The adjustable jaws and swinging catches that engage notches around the circumference of the head comprise the major features of this angle-adjustable nut wrench. The object is to adjust the angle of the jaw opening in relation to the handle rather than to achieve ratchet action.

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