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US Patent: 476,079
Wrench
Patentee:
John Ryan - New York, NY

USPTO Classifications:
81/171

Tool Categories:
wrenches : wrench components : wrench handle components
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Barnes Tool Co. - New Haven, CT

Witnesses:
C. Sedgwick
J. Fred. Acker
H. Walker

Patent Dates:
Applied: Feb. 27, 1892
Granted: May 31, 1892

Patent Pictures:
John Ryan Pat. May 31, 1892
USPTO pdf tiff
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Description:
The patent is an improvement on pat. no. 339,813. The improvement is for firmer connections between the handle portions, and a firmer connection of the adjusting screw to the handle.

The wrench using these patents is marked "BARNES TOOL CO // PAT 1886 IMPR 1892"

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