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US Patent: 464,162
Rotary Steam Engine
Patentee:
Marion J. Mapes (exact or similar names) - Bath-on-the-Hudson, Rennsselaer County, NY

USPTO Classifications:
418/117, 418/124, 418/140, 418/215, 418/250

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 14, 1891
Granted: Dec. 01, 1891

Patent Pictures:
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