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US Patent: 97,430
Wrench
Patentee:
Robert Nicholson - Pleasantville, PA

USPTO Classifications:
81/119, 81/185.2

Tool Categories:
wrenches
wrenches : wrench components : nut holders on wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. J. Holden
Fred. Bates

Patent Dates:
Granted: Nov. 30, 1869

Patent Pictures:
Robert Nicholson Pat. Nov. 30, 1869
USPTO pdf tiff
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Description:
The wrench is a hook jaw with a keeper spring which can be momentarily depressed or retracted by swinging a wire bail which encircles the back of the hook jaw.

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