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US Patent: 227,845
Dynamo Electric Machine
Patentee:
William Sawyer - New York, NY

USPTO Classifications:
310/54

Tool Categories:
electrical devices : electric motors : DC motors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 16, 1880
Granted: May 18, 1880

Patent Pictures:
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