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US Patent: 470,626
Wrench
Patentee:
William J. Walker (exact or similar names) - St. Louis, MO

USPTO Classifications:
81/147

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

Assignees:
William J. Walker - St. Louis, MO
Theodore H. Wurmb - St. Louis, MO

Manufacturer:
Not known to have been produced

Witnesses:
Edward E. Longan
C. F. Keller
Patent Dates:
Applied: Apr. 16, 1891
Granted: Mar. 08, 1892

Patent Pictures:
William J. Walker patent March 8, 1892
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Description:
A spring-loaded lug in the movable jaw presses interior teeth into a rack on the shank to hold the adjustment.

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