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US Patent: 293,585
Oscillating Steam Pumping Engine
Patentee: Frank D. Maltby (exact or similar names) - New York, NY USPTO Classifications: 417/375, 91/310, 91/339, 92/118, 92/125 Tool Categories: propulsion and energy : steam apparatus : steam pumping engines propulsion and energy : steam apparatus : oscillating steam engines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 19, 1883 Granted: Feb. 12, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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