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US Patent: 315,181
Electric Motor and Generator
Patentee:
Frank J. Sprague (exact or similar names) - New York, NY

USPTO Classifications:
310/188, 318/527, 322/27, 322/64, 388/826

Tool Categories:
electrical devices : electric motors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 19, 1884
Granted: Apr. 07, 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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