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US Patent: 337,894
Pipe Wrench
Patentee:
John J. Tower - Brooklyn, NY

USPTO Classifications:
81/94

Tool Categories:
wrenches : pliers type wrenches
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Chas. H. Smith
Harold Terrell
Geo. T. Pinckney
William G. Mott

Patent Dates:
Applied: Dec. 11, 1885
Granted: Mar. 16, 1886

Patent Pictures:
John J. Tower patent March 16, 1886
USPTO pdf tiff
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Description:
Although not named specifically, the general comments in the specifications seem to refer to Bauer's patent (no. 313,571). This design is similar, but includes a buttress behind the pivot point.

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