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Application filed by Zuppinger Dr RobertfiledCriticalZuppinger Dr Robert
Publication of CH56331ApublicationCriticalpatent/CH56331A/de
CH56331A1911-11-181911-11-18Einrichtung zum Antrieb von Ringspinnmaschinen mit selbsttätig veränderter Geschwindigkeit durch Elektromotoren
CH56331A
(de)