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Publication of CH16985ApublicationCriticalpatent/CH16985A/de
Improvements in connection with Electrical Measuring Instruments Employed in Combination with Current and Potential Transformers for Measuring Electrical Energy.
Einrichtung zum Feststellen des Vorhandenseins und der Richtung von Ausgleichströmen in Wechselstromanlagen ohne Benutzung des Summenstromes der Generatorsammelschienen