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US Patent: 847,088
Variable Speed Electric Motor
Patentee:
John C. Lincoln - Cleveland, OH

USPTO Classifications:
310/186, 310/209

Tool Categories:
electrical devices : electric motors : DC motors

Assignees:
Lincoln Co. - Cleveland, OH

Manufacturer:
Not known to have been produced

Witnesses:
Frank H. Forrest
Albert Lyon Lawrence
F. C. Valentine
C. W. Hitchcock

Patent Dates:
Applied: Jan. 12, 1906
Granted: Mar. 12, 1907

Patent Pictures:
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