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Patent number:
Patent Date:
US Patent: 10,500
Tool Holder. Two jaws actuated by threaded sleeve
Patentee:
Dexter H. Chamberlain (
exact
or
similar
names) - Boston, MA
USPTO Classifications:
30/366
,
74/543
Tool Categories:
industrial tools
:
tool holders
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Granted:
Feb. 07, 1854
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
Idea predates Barber patent.
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