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US Patent: 841,692
Wrench
Patentee:
Frederick H. Kanning (exact or similar names) - East St. Louis, IL

USPTO Classifications:
81/165, 81/177.8

Tool Categories:
wrenches : wrench adjustment types : angle adjustable wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Geo. R. Ladson
Wells L. Church
George Bakewell

Patent Dates:
Applied: Jul. 25, 1906
Granted: Jan. 22, 1907

Patent Pictures: [ 1 | 2 ]
Frederick H. Kanning patent Jan. 22, 1907
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Description:
Adjustable angle between handle and head; the patent describes adjustable jaw pipe and nut wrenches as well as an "alligator" wrench head. Improvement on Kanning's Dec. 20, 1904 patent no. 777,955.

The wrench as produced is an adjustable jaw nut wrench, with a sliding pin to hold the angle adjustment (viz. patent no. 777,955) rather than the screw adjustable holder shown in the patent drawing.

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