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Patent number:
Patent Date:
US Patent: 1,890,601
Internal Combustion Indicator
Patentee:
Claude E. Cox (
exact
or
similar
names) - Detroit, Wayne County, MI
USPTO Classifications:
346/4
,
346/44
Tool Categories:
propulsion and energy
:
internal combustion engines
:
internal combustion engine indicators
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jul. 29, 1929
Granted:
Dec. 13, 1932
Patent Pictures:
USPTO
(New site tip)
Google Patents
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