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US Patent: 286,913
Wrench
Patentee:
Robert W. Davis - Elmira, NY

USPTO Classifications:
81/132

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

Assignees:
Davis Wrench Co. - Elmira, NY

Manufacturer:
Davis Wrench Co. - Elmira, NY

Witnesses:
A. W. Davis
F. G. Hall
C. Bendixon
Wm. C. Raymond

Patent Dates:
Applied: Mar. 24, 1883
Granted: Oct. 16, 1883

Patent Pictures:
Robert W. Davis patent October 16, 1883
USPTO pdf tiff
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Description:
The adjustable jaw has a pivoting gripping block. It is held in engagement by a set screw on the back side of the movable jaw.

Wrench miniaturist Hilary Klein produced miniature versions of this wrench, based on an example in his collection.

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