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US Patent: 391,571
Windmill
Patentee: Frank D. Winkley (exact or similar names) - Madison, WI USPTO Classifications: 416/139, 416/159 Tool Categories: propulsion and energy : wind power apparatus Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles G. Mayers William H. Mihills	Patent Dates: Applied: Apr. 17, 1888 Granted: Oct. 23, 1888 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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