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US Patent: 165,271
Pipe-Tongs
Improvement in Grappling-Tongs
Patentee:
Samuel Stone - North Manchester, CT

USPTO Classifications:
81/186, 81/424.5

Tool Categories:
wrenches : pliers type wrenches

Assignees:
None

Manufacturer:
Neverslip Horse Shoe Co. - Boston, MA

Witnesses:
Jeremy W. Bliss
C. H. Douglas

Patent Dates:
Applied: Sep. 21, 1874
Granted: Jul. 06, 1875

Patent Pictures:
Samuel Stone Pat. July 6, 1875
USPTO pdf tiff
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Description:
This pliers-type tool with large gripping teeth was designed and patented as a pipe wrench. It was produced and marketed as a horseshoe calk wrench by the Neverslip Horseshoe Company of Boston. Markings on known examples are "PAT JULY 6, 75 .. IN / OUT"

Pat. #s 588,438, 796,305, 1,061,047, and 1,254,813 are later efforts to address the problems inherent in manipulating horseshoe calks.

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