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2646539
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Information
Patent Grant
2646539
References
Source
Patent Number
2,646,539
Date Filed
Not available
Date Issued
Tuesday, July 21, 1953
71 years ago
CPC
H02P1/20 - by progressive reduction of resistance in series with armature winding
Y10S388/934 - Thermal condition
US Classifications
318 - Electricity: motive power systems
338 - Electrical resistors
388 - Electricity: motor control systems
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