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US Patent: 249,968
Pipe Wrench
Patentee:
Timothy D. Mernan - Buffalo, NY

USPTO Classifications:
81/68

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

Assignees:
Timothy D. Mernan - Buffalo, NY
Alan H.G. Hardwicke - Buffalo, NY

Manufacturer:
Not known to have been produced

Witnesses:
A. H.G. Hardwicke
Jno. J. Bonner
Chas. J. Buchheit
Edw. J. Brady

Patent Dates:
Applied: Oct. 07, 1881
Granted: Nov. 22, 1881

Patent Pictures:
Timothy D. Mernan patent November 22, 1881
USPTO pdf tiff
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Description:
The chain is not firmly attached to the handle. It passes through a "cross-shaped" hole in the handle, and is connected by a hook.

Corresponding Canadian patent CA-13,998 was granted Jan. 16, 1882.

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