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Patent number:
Patent Date:
US Patent: 424,000
Rotary Gas Engine
Patentee:
George E. Hibbard (
exact
or
similar
names) - Chicago, IL
USPTO Classifications:
123/153
,
123/220
,
123/223
,
123/46R
,
123/65B
,
123/70R
,
418/195
Tool Categories:
propulsion and energy
:
internal combustion engines
:
rotary engines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jul. 12, 1887
Granted:
Mar. 25, 1890
Patent Pictures:
USPTO
(New site tip)
Google Patents
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