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Patent number:
Patent Date:
US Patent: 2,155,890
Heating System
Patentee:
Richard L. Campbell (
exact
or
similar
names) - Birmingham, Oakland County, MI
USPTO Classifications:
236/9A
,
237/8R
Tool Categories:
specialty machines
:
heating apparatus
Assignees:
Detroit Lubricator Co.
- Detroit, Wayne County, MI
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jan. 15, 1936
Granted:
Apr. 25, 1939
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Detroit Lubricator Co.
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