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US Patent: 151,315
Carriage-Wrenches
Patentee:
Wilbur F. Rowe - Minneapolis, MN

USPTO Classifications:
81/58.1, 81/58.3

Tool Categories:
wrenches : axle nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Levi Longfellow
Daniel W. Longfellow
Chas. Nida
C. Sedgwick

Patent Dates:
Applied: Apr. 18, 1874
Granted: May 26, 1874

Patent Pictures:
Wilbur F. Rowe Pat. May 26, 1874
USPTO pdf tiff
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Description:
The special feature of this carriage wrench is the knob and socket which can be turned separately from the handle, or by the handle. The shank between the knob and socket has a polygonal cross section for part of its length, and part is round.

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