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Patent number:
Patent Date:
US Patent: 2,482,302
Filtering System
Patentee:
Otto M. Summers (
exact
or
similar
names) - Glasgow, Barren County, KY
USPTO Classifications:
210/254
,
210/335
Tool Categories:
metalworking machines
:
metalworking machine mechanisms
:
coolant apparatus
manufacturing
:
manufacturing processes
:
filtering fluids
Assignees:
Thompson Grinder Co.
- Springfield, Clark County, OH
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Apr. 25, 1946
Granted:
Sep. 20, 1949
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Thompson Grinder Co.
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