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Patent number:
Patent Date:
US Patent: 456,284
Gas Engine
Patentees:
Peter T. Coffield (
exact
or
similar
names) - Springfield, Clark County, OH
Charles H. Paxson (
exact
or
similar
names) - Springfield, Clark County, OH
USPTO Classifications:
123/146
,
123/348
,
123/41.09
,
123/86
,
261/96
Tool Categories:
propulsion and energy
:
internal combustion engines
:
gas and gasoline engines
Assignees:
Springfield Gas Engine Co.
- Springfield, Clark County, OH
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Dec. 16, 1890
Granted:
Jul. 21, 1891
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Springfield Gas Engine Co.
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