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Patent number:
Patent Date:
US Patent: 85,276
Improvement in Wrenches
Patentee:
John Burt (
exact
or
similar
names) - Fall River, MA
USPTO Classifications:
81/180.1
Tool Categories:
wrenches
:
wrench components
:
wrench jaw components
wrenches
:
axle nut wrenches
Assignees:
John Burt
- Fall River, MA
Willet M. Slocum
- Fall River, MA
Manufacturer:
Unknown
Witnesses:
Philip S. Burt
Jonathan M. Wood
Patent Dates:
Granted:
Dec. 29, 1868
Patent Pictures: [
1
|
2
]
John Burt Pat. Dec. 29, 1868
USPTO
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Description:
The patent is for a spring within a wrench jaw for the purpose of holding a nut such as a carriage axle nut.
A malleable iron "box end" carriage wrench with this spring clip, and marked with this patent date is known; the maker is not known.
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