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US Patent: 200,971
Wrench
Wrench for Taking Off and Holding Burrs of Carriages, etc.
Patentees:
Addison Berdan - Tecumseh, MI
Amander E. Warren - Tecumseh, MI

USPTO Classifications:
24/135R, 81/170, 81/180.1, 81/186

Tool Categories:
wrenches : axle nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Franck L. Ourand
Frank Galt
J. E. Waring
William Severance

Patent Dates:
Applied: Aug. 13, 1877
Granted: Mar. 05, 1878

Patent Pictures:
Addison Berdan and Amander E. Warren patent March 5, 1878
USPTO pdf tiff
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Description:
This axle nut wrench is made of flat iron. It adjusts by a thumbscrew and has a small lug that would fit into a corresponding depression in the axle nut.

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