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US Patent: 401,926
Pipe Wrench
Patentee:
Lewis J. Bergendahl - Pendleton, OR

USPTO Classifications:
81/68

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
G. S. Elliott
E. W. Johnson
Lucian Everts
Thos. Fitz Gerald

Patent Dates:
Applied: Dec. 27, 1888
Granted: Apr. 23, 1889

Patent Pictures:
Lewis J. Bergendahl patent April 23, 1889
USPTO pdf tiff
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Description:
Chain wrench with double "V" shaped gripping jaw faces; one side straight and one side curved.

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