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H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
Verfahren zur Theilung des Stromes einer elektrischen Maschine in Theile von verschiedener elektro-motorischer Kraft, sowie zur Regulirung des Stromes durch Anwendung mehrerer Bürsten