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US Patent: 1,353,246
Pipe Wrench
Patentee:
Arthur Wellington Kiefer (exact or similar names) - Chicago, IL

USPTO Classifications:
81/103, 81/129.5

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 05, 1920
Granted: Sep. 21, 1920

Patent Pictures:
Arthur W. Kiefer patent Sept. 21. 1920
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Description:
Quick adjust pipe wrench; gripping teeth on the rocking yoke and fixed jaw hold the adjustment. Improved by patent no. 1,380,566.

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