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US Patent: 208,559
Rotary-Engines, &c.
Patentees: Walter E. Bartrum (exact or similar names) - London, England Henry C. Powell (exact or similar names) - London, England USPTO Classifications: 418/65 Tool Categories: propulsion and energy : steam apparatus : rotary steam engines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 23, 1878 Granted: Oct. 01, 1878 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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