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US Patent: 171,256
Centrifugal Water-Wheel
Patentee: Oscar J. Backus (exact or similar names) - Newark, Essex County, NJ USPTO Classifications: 415/63 Tool Categories: propulsion and energy : water power : water wheels Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 20, 1875 Granted: Dec. 21, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Backus Water Motor Co.

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