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US Patent: 9,539X
Rotary steam engine
Patentee:
David Ulam (exact or similar names) - Greenburg, PA

USPTO Classifications:
418/270

Tool Categories:
propulsion and energy : steam apparatus : rotary steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Mar. 23, 1836

Patent Pictures:
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X-Patents
Description:
Only about 2000 of the almost 10000 X-patent documents were recovered.

Because of the Patent Office fire in Dec. 1836, little is known about this patent. This patent is in the database for reference only.

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