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US Patent: RE3,350
Improvement in Wrenches
Patentee:
Aury Gates Coes (exact or similar names) - Worcester, MA

USPTO Classifications:
81/171

Tool Categories:
wrenches : nut wrenches

Assignees:
None

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

Witnesses:
Fred. Curtis
Edward Griffith
Patent Dates:
Granted: Mar. 30, 1869

Reissue Information:
Reissue of 52,968 (Mar. 06, 1866)

Patent Pictures:
A.G. Coes Pat. Reissued Mar. 30, 1869
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Description:
The shank of a monkey wrench has a "notch" to help support the "back strain" of the adjusting screw against a two-part ferule and handle.

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