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US Patent: 145,953
Wrenches
Patentee:
John Lee - St. Louis, MO

USPTO Classifications:
81/149

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : wrench adjustment types : wedge adjust wrenches

Assignees:
John Lee - St. Louis, MO
John Gallagher - St. Louis, MO
John J. Rich - St. Louis, MO

Manufacturer:
Not known to have been produced

Witnesses:
John Gallagher
John J. Rich

Patent Dates:
Applied: Jun. 07, 1873
Granted: Dec. 30, 1873

Patent Pictures:
John Lee Pat. Dec. 30, 1873
USPTO pdf tiff
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Description:
A lever handle on the back of the sliding jaw operates a movable wedge which clamps the jaw against teeth on the back side of the main shank. This is an improvement on Lee's June 3, 1873 patent (no. 139,622).

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