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US Patent: 313,621
Double Acting Water Wheel
Patentee: Charles William Rau (exact or similar names) - Allentown, Lehigh County, PA USPTO Classifications: 415/69 Tool Categories: propulsion and energy : water power : water wheels Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 21, 1884 Granted: Mar. 10, 1885 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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