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US Patent: 55,100
Improvement In Screw-Wrenches
Nut Wrench
John Hegarty - Jersey City, NJ

USPTO Classifications:
81/165, 81/170, 81/DIG8

Tool Categories:
wrenches : basin wrenches


C.S. Osborne & Co. - Jersey City, NJ

A. Leclerc
Henry T. Brown

Patent Dates:
Granted: May 29, 1866

Patent Pictures: [ 1 | 2 ]
John Hegarty patent May 29, 1866
USPTO pdf tiff
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Hagerty's Basin Wrench (FLICKR)
The patent explicitly explains the wrench's intended use as a basin wrench.

It received a writeup in the June 8, 1866 ENGLISH MECHANIC AND MIRROR OF SCIENCE. Listed in an 1877 hardware wholesale catalog as "BASIN WRENCH." Appears in a 1903 hardware catalog as "common basin wrench."

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