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US Patent: 321,147
Electro Dynamic Motor
Patentee:
Frank J. Sprague (exact or similar names) - New York, NY

USPTO Classifications:
318/257, 318/263

Tool Categories:
electrical devices : electric motors

Assignees:
Sprague Electric Railway & Motor Co. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 27, 1885
Granted: Jun. 30, 1885

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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