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Application filed by John Fredrik NybomfiledCriticalJohn Fredrik Nybom
Priority to FI227668ApriorityCriticalpatent/FI59003C/fi
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Publication of FI59003CpublicationCriticalpatent/FI59003C/fi
Procedimiento y dispositivo para regular una maquina sincronica excitada por iman permanente con reducidas oscilaciones de potencia en el margen superior del numero de revoluciones.