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Patent number:
Patent Date:
US Patent: 38,866
Hot Air Engine
Patentee:
S. H. Roper (
exact
or
similar
names) - Boston, Middlesex County, MA
USPTO Classifications:
60/39.23
,
60/729
Tool Categories:
propulsion and energy
:
external combustion engines
:
hot air engines
Assignees:
Elmer Townsend
- Boston, Middlesex County, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Granted:
Jun. 09, 1863
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Sherrill Roper Air Engine Co.
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