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Priority claimed from DE19712151996external-prioritypatent/DE2151996C3/de
Priority claimed from DE19712152693external-prioritypatent/DE2152693C2/de
Application filed by Siegenia Frank KgfiledCriticalSiegenia Frank Kg
Publication of ATA884072ApublicationCriticalpatent/ATA884072A/de
Application grantedgrantedCritical
Publication of AT326521BpublicationCriticalpatent/AT326521B/de