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US Patent: 190,959
Wrench
Patentee:
Horace Davis - Berlin, WI

USPTO Classifications:
81/126

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
Horace Davis - Berlin, WI
Henry Morman - Berlin, WI

Manufacturer:
Unknown

Witnesses:
P. C. Dieterich
Wm. P. Upperman
C. H. Watson

Patent Dates:
Applied: Apr. 12, 1877
Granted: May 22, 1877

Patent Pictures: [ 1 | 2 ]
Horace Davis patent May 22, 1877
USPTO pdf tiff
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Description:
Self-adjusting nut wrench. One extant example is marked with the patent date, and is approx. 12 inches long.

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