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US Patent: 59,571
Improvement in Wrenches
Patentee:
W. Evans (exact or similar names) - Forestville, CT

USPTO Classifications:
81/145

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Hobart Booth
Laporte Hubbell

Patent Dates:
Granted: Nov. 13, 1866

Patent Pictures:
W. Evans Pat. Nov. 13, 1866
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Description:
The quick adjust mechanism on the movable jaw is a thumb lever moving a catch with teeth. The teeth on the catch engage a rack on the back of the bar.

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