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US Patent: 636,561
Wrench
Patentee:
Barney Ross - Painesville, OH

USPTO Classifications:
81/69

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edwin G. McKee
Geo. M. Anderson
J. C. Ward
Geo. W. Alvord

Patent Dates:
Applied: Mar. 23, 1899
Granted: Nov. 07, 1899

Patent Pictures:
Barney Ross patent Nov. 7, 1899
USPTO pdf tiff
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Description:
Chain pipe wrench; the patented features are details of the pivot bolt and the hooks on the main handle. The patent is an improvement on Ross' Feb. 22, 1898 patent no. 599,673.

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