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US Patent: 1,261,126
Dynamo-electric machine
Patentee:
Rudolf E. Hellmund - Pittsburgh, PA

USPTO Classifications:
310/58, 310/64

Tool Categories:
electrical devices : electric motors : motor cooling

Assignees:
Westinghouse Electric & Manufacturing Co. - East Pittsburgh, PA

Manufacturer:
Westinghouse Electric & Manufacturing Co. - East Pittsburgh, PA

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 01, 1915
Granted: Apr. 02, 1918

Patent Pictures:
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Description:
"My invention is particularly applicable to machines designed for railway service where it is essential to obtain effective ventilation without increasing the length of the machines."

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