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US Patent: 551,467
Wrench
Patentee:
Ole H. Hanson - Litchfield, MN

USPTO Classifications:
81/173, 81/186

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Richard Paul
C. E. Van Doren
Nels Larson
Aron Ludholm

Patent Dates:
Applied: Mar. 25, 1895
Granted: Dec. 17, 1895

Patent Pictures:
Ole H. Hanson patent December 17, 1895
USPTO pdf tiff
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Description:
The threaded shaft is parallel to the handle. The adjusting "bur" bears against a notch in the shank of the movable jaw.

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