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Priority claimed from DE19762618252external-prioritypatent/DE2618252A1/de
Priority claimed from DE2620212Aexternal-prioritypatent/DE2620212C2/de
Application filed by Schmid AloisfiledCriticalSchmid Alois
Publication of ATA263777ApublicationCriticalpatent/ATA263777A/de
Application grantedgrantedCritical
Publication of AT367516BpublicationCriticalpatent/AT367516B/de