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US Patent: 86,181
Wrench
Universal Key or Extensible Wrench
Patentee:
Pierre Augustin Samuel (exact or similar names) - Paris, France

USPTO Classifications:
81/90.2

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Richard D. Andrews
A. Guion
? Demos

Patent Dates:
Granted: Jan. 26, 1869

Patent Pictures:
Pierre A. Samuel patent January 26, 1869
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Description:
The pincer type jaws are tightened by a double-lobed cam attached to the handle. The drawings show smooth and tooth-faced jaws. The terminology of the specifications appears to be translated from French.

Corresponding British patent GB-186800333 was granted Jan. 30, 1868.

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