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US Patent: 227,623
Electro-Magnetic Motor
Patentee:
William W. Griscom - Philadelphia, PA

USPTO Classifications:
310/224, 310/244, 310/75R

Tool Categories:
electrical devices : electric motors : DC motors

Assignees:
None

Manufacturer:
Electro-Dynamic Co. - Philadelphia, PA

Witnesses:
Alexander Patterson
Harry Smith
Henry Howson, Jr.

Patent Dates:
Applied: Oct. 21, 1879
Granted: May 18, 1880

Patent Pictures: [ 1 | 2 | 3 ]
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"Vintage Machinery" entry for Electro-Dynamic Co.

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