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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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FR564891D1922-07-271922-07-27Machine dynamo-électrique à courant continu sans collecteur
ExpiredFR564891A
(fr)