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Patent number:
Patent Date:
US Patent: 1,408,808
Expansion Plug Gauge
Patentee:
William E. Keopple (
exact
or
similar
names) - Dayton, Montgomery County, OH
USPTO Classifications:
33/544.6
Tool Categories:
metalworking tools
:
machinist tools
:
measuring tools
:
plug gauges
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Howard S. Smith
Patent Dates:
Applied:
Sep. 15, 1920
Granted:
Mar. 07, 1922
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Howard S. Smith - patent attorney
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