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Application filed by Schrack Elektrizitaets Ag EfiledCriticalSchrack Elektrizitaets Ag E
Priority to AT89479ApriorityCriticalpatent/AT361046B/en
Publication of ATA89479ApublicationCriticalpatent/ATA89479A/en
Application grantedgrantedCritical
Publication of AT361046BpublicationCriticalpatent/AT361046B/en