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US Patent: 1,507,381
Commutator-slotting machine
Patentee:
William Jannell - West Park, OH

USPTO Classifications:
279/5, 409/164, 409/221, 74/817, 74/823

Tool Categories:
electrical devices : electric motors : electric motor making

Assignees:
Domestic Electric Co. - Cleveland, OH

Manufacturer:
Domestic Electric Co. - Cleveland, OH

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 03, 1920
Granted: Sep. 02, 1924

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Domestic Electric Co.

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