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Patent number:
Patent Date:
US Patent: 587,715
Automatic Extensible and Collapsible Adjustable Tap
Patentee:
Franklin A. Errington (
exact
or
similar
names) - Edgewater, Richmond County, NY
USPTO Classifications:
408/154
,
408/178
Tool Categories:
metalworking tools
:
taps and dies
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 14, 1895
Granted:
Aug. 10, 1897
Patent Pictures:
USPTO
(New site tip)
Google Patents
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