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US Patent: RE139
Wrench
Improvement In Screw-Wrenches
Patentee:
Loring Coes - Worcester, MA

USPTO Classifications:
139/109, 139/329, 139/372, 81/171

Tool Categories:
wrenches : nut wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
L. & A.G. Coes Co. - Worcester, MA

Witnesses:
Isaac Davis
Jonathan Day
J. S. Woodworth

Patent Dates:
Granted: Jun. 26, 1849

Reissue Information:
Reissue of 2,054 (Apr. 16, 1841)

Patent Pictures:
Loring Coes Pat. Reissued June 26, 1849
USPTO pdf tiff
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Description:
The sliding jaw is moved by a screw parallel to the main bar of the wrench. Loring Coes' screw wrench patent was the basis for adjustable wrenches manufactured through the mid-20th Century.

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