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H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K31/00—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors
H02K31/02—Acyclic motors or generators, i.e. DC machines having drum or disc armatures with continuous current collectors with solid-contact collectors
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Power Engineering
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FR537468D1920-12-021920-12-02Machine unipolaire à courant continu
ExpiredFR537468A
(fr)