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US Patent: 295,454
Electro Dynamic Motor
Patentee: Frank J. Sprague (exact or similar names) - North Adams, Berkshire County, MA USPTO Classifications: 318/251, 318/257, 318/294, 318/527 Tool Categories: electrical devices : electric motors Assignees: None Manufacturer: Not known to have been produced Witnesses: C. Burnham E. C. Rowland Charles I. Petherick William J. Hammer	Patent Dates: Applied: May 02, 1883 Granted: Mar. 18, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Sprague Electric Railway & Motor Co.

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