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US Patent: 2,878,702
Slidable Outer Jaw Wrench
Patentee:
Anders Gustav Anderson (exact or similar names) - Chicago, IL

USPTO Classifications:
81/145

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

Assignees:
None

Manufacturer:
Anderson Tool Manufacturing Co. - Chicago, IL

Witnesses:
none listed

Patent Dates:
Applied: Apr. 19, 1957
Granted: Mar. 24, 1959

Patent Pictures:
Anders G. Anderson patent March 24, 1959
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Description:
A spring-tensioned latch holds the jaw adjustment. The design addresses one-handed adjustment without danger of pinching fingers, jaw in-line with the handle, and overall "firm" construction. Known example marked "ANDERSON TOOL COMPANY" and the patent number.

U.S. patents 789,307, 1,026,005, 1,380,794, 1,391,581, 1,396,576, 2,703,503, and 2,760,396 and British patents GB-133,760 and GB-135,405 are cited as references.

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