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US Patent: 112,101
Wrench
Patentee:
Rollin White - Lowell, MA

USPTO Classifications:
408/240

Tool Categories:
wrenches : tap wrenches and die stocks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jas. O. Hutchinson
C. L. Evert
C. M. Alexander

Patent Dates:
Applied: Jan. 11, 1871
Granted: Feb. 21, 1871

Patent Pictures:
Rollin White Pat. Feb. 21, 1871
USPTO pdf tiff
Google Patents
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Description:
A roughly "U" shaped jaw with a right-angle notch lines up with a right-angled notch in the handle to form a square "wrench."

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