US Patent: 531,790 - Method of operating or controlling electric motors or dynamos


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US Patent: 531,790

Method of operating or controlling electric motors or dynamos

Patentee:

Rudolf Eickemeyer (exact or similar names) - Yonkers, NY

USPTO Classifications:

Tool Categories:

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Pictures: