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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:
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