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US Patent: 383,334
Wrench
Improvements in Vise-Wrenches
Patentee:
John D. Abbott - Reading, MI

USPTO Classifications:
24/514, 269/234, 81/116, 81/97

Tool Categories:
wrenches : axle nut wrenches

Assignees:
John D. Abbott - Reading, MI
James A. Armstrong - Ludington, MI

Manufacturer:
Not known to have been produced

Witnesses:
John Schuman
P. M. Hulbert
Orlando F. Buell
Amos H. Bartholomew

Patent Dates:
Applied: Mar. 08, 1888
Granted: May 22, 1888

Patent Pictures:
John D. Abbott patent May 22, 1888
USPTO pdf tiff
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Description:
The cone-shape adjusting wing nut clamps the jaws onto an axle nut so it can be screwed on or off and held securely while it is off the axle.

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