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2418560
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Patent Grant
2418560
References
Source
Patent Number
2,418,560
Date Filed
Not available
Date Issued
Tuesday, April 8, 1947
77 years ago
CPC
H02P1/20 - by progressive reduction of resistance in series with armature winding
US Classifications
388 - Electricity: motor control systems
318 - Electricity: motive power systems
361 - Electricity: electrical systems and devices
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