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US Patent: 1,315,071
Wrench
Patentee:
Joseph Askins - Lima, OH

USPTO Classifications:
81/132

Tool Categories:
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Everett Lloyd, Jr.

Patent Dates:
Applied: Dec. 02, 1918
Granted: Sep. 02, 1919

Patent Pictures: [ 1 | 2 ]
Joseph Askins Patent September 2, 1919
USPTO pdf tiff
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Description:
The sliding jaw bears against teeth on the shank, with an inner clamping element inside the shank. Tightening the wing nut clamps these elements together firmly.

Known examples marked "LIMA PAT. 9-2-1919"

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