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US Patent: 136,089
Pipe-Wrenches
Patentee:
Eri S. Moulton - Chelsea, MA

USPTO Classifications:
81/399

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Geo. W. Mann
J. P. McElroy
Edwin W. Brown

Patent Dates:
Applied: Jun. 21, 1872
Granted: Feb. 18, 1873

Patent Pictures:
Eri S. Moulton Pat. Feb. 18, 1873
USPTO pdf tiff
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Description:
Pipe tongs with hinge on adjustable base. This intermediate sliding block is the subject of the patent.

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