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US Patent: 1,406,408
Wrench
Patentee:
William M. Myers - St. Joseph, Buchanan County, MO

USPTO Classifications:
81/126, 81/139

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
R. Hamilton

Patent Dates:
Applied: May 28, 1920
Granted: Feb. 14, 1922

Patent Pictures: [ 1 | 2 ]
William M. Myers patent February 14, 1922
USPTO pdf tiff
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Description:
The small "trigger" controls a dog that grips an internal rack for quick adjustment. The compound handle actuates additional jaw movement to generate a final tight grip.

Known example marked MYERS COMBINATION WRENCH MILWAUKEE WIS.

Warren D. House - patent attorney

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