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US Patent: 493,439
Commutator for dynamo-electric machines and method of constructing same
Patentee:
Alexander W. Meston (exact or similar names) - St. Louis, MO

USPTO Classifications:
310/237

Tool Categories:
electrical devices : electric motors : motor commutators

Assignees:
Emerson Electric Mfg. Co. - St. Louis, MO

Manufacturer:
Not known to have been produced

Witnesses:
A. Ramel
H. K. Wagner

Patent Dates:
Applied: Sep. 12, 1892
Granted: Mar. 14, 1893

Patent Pictures:
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