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US Patent: 588,049
Wrench
Patentee:
Charles H. Avery (exact or similar names) - Binghamton, NY

USPTO Classifications:
81/150

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
G. R. Pray
Charles H. Noe
J. G. Tabler
John A. Rennie

Patent Dates:
Applied: Aug. 31, 1896
Granted: Aug. 10, 1897

Patent Pictures:
Charles H. Avery patent August 10, 1897
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Description:
The adjusting mechanism is a spring-loaded "clutch" piece contained within the movable jaw.

Ken Cope's "American Wrench Makers 1830-1930" notes a "Scientific American" mention of the patent that implies Avery would produce the wrench.

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