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Patent number:
Patent Date:
US Patent: 1,593,753
Micrometer Caliper
Patentee:
Phillip J. Darlington (
exact
or
similar
names) - Brookline, MA
USPTO Classifications:
33/199R
,
33/501.2
,
33/804
Tool Categories:
metalworking tools
:
machinist tools
:
measuring tools
:
micrometers
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
none listed
Patent Dates:
Applied:
Mar. 25, 1925
Granted:
Jul. 27, 1926
Patent Pictures:
USPTO
(New site tip)
Google Patents
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