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Patent number:
Patent Date:
US Patent: 635,324
Tap for Forming Screw Threads
Patentee:
Richard Kilburn (
exact
or
similar
names) - Manchester, Lancaster County, England
USPTO Classifications:
408/142
,
470/203
Tool Categories:
metalworking tools
:
taps and dies
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Feb. 01, 1898
Granted:
Oct. 24, 1899
Patent Pictures:
USPTO
(New site tip)
Google Patents
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