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US Patent: 174,354
Pipe-Wrench
Patentee:
Isaiah Cressey - Gloucester, MA

USPTO Classifications:
81/97

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

Assignees:
None

Manufacturer:
Isaiah Cressey - Gloucester, MA

Witnesses:
S. W. Piper
Hannah Tarr
Lizzie A. Tarr

Patent Dates:
Applied: Apr. 02, 1875
Granted: Mar. 07, 1876

Patent Pictures:
Isaiah Cressey Pat. March 7, 1876
USPTO pdf tiff
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Description:
The movable jaw pivots out from a base that is moved up and down the main shank by an adjusting ring. The example shown as no. 595 in "Antique and Unusual Wrenches" by Schulzes does not include a spring or lever handle on the rocking jaw insert.

Cressey's March 24, 1885 patent (no. 314,517) is an elaboration and modification of this patent.

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