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US Patent: 491,708
Electric Motor and Dynamo Mica Insulator
Patentee:
Charles W. Jefferson (exact or similar names) - Schenectady, NY

USPTO Classifications:
156/196, 174/138E, 310/215, 310/267

Tool Categories:
electrical devices : electric motors : electrical insulation

Assignees:
Eugene Munsell & Co. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 01, 1892
Granted: Feb. 14, 1893

Patent Pictures:
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