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Patent number:
Patent Date:
US Patent: 1,668,927
Noncondensing steam engine
Patentee:
Johan Stumpf (
exact
or
similar
names) - Berlin, Germany
USPTO Classifications:
33/23.07
,
60/694
,
91/325
Tool Categories:
propulsion and energy
:
steam engines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Nov. 10, 1920
Granted:
May 08, 1928
Patent Pictures:
USPTO
(New site tip)
Google Patents
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