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Patent number:
Patent Date:
US Patent: 1,214,754
Counterboring Tool and Holder
Patentee:
Dean F. Carscadden (
exact
or
similar
names) - Flint, Genesee County, MI
USPTO Classifications:
122/4A
,
279/76
,
292/73
,
74/527
Tool Categories:
metalworking machines
:
drilling and boring
:
drilling and boring tool holders
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Nov. 17, 1915
Granted:
Feb. 06, 1917
Patent Pictures:
USPTO
(New site tip)
Google Patents
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