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US Patent: 480,739
Commutator for electro-magnetic machines
Patentee:
Horace F. Parshall (exact or similar names) - Schenectady, NY

USPTO Classifications:
310/219

Tool Categories:
electrical devices : electric motors : motor commutators

Assignees:
Edison General Electric Co. - Schenectady, NY

Manufacturer:
Not known to have been produced

Witnesses:
Frederick A. Phelps, Jr.
Joseph Insull

Patent Dates:
Applied: Dec. 11, 1891
Granted: Aug. 16, 1892

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for General Electric Co.

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