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Patent number:
Patent Date:
US Patent: 1,300,692
Screw Thread Micrometer
Patentee:
Lowell C. Blomstrom (
exact
or
similar
names) - Detroit, Wayne County, MI
USPTO Classifications:
33/818
,
33/829
Tool Categories:
metalworking tools
:
machinist tools
:
measuring tools
:
micrometers
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jan. 07, 1918
Granted:
Apr. 15, 1919
Patent Pictures:
USPTO
(New site tip)
Google Patents
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