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Priority claimed from DE2534203Aexternal-prioritypatent/DE2534203C2/de
Priority claimed from DE19752552939external-prioritypatent/DE2552939A1/de
Application filed by Siegenia Frank KgfiledCriticalSiegenia Frank Kg
Publication of ATA373676ApublicationCriticalpatent/ATA373676A/de
Application grantedgrantedCritical
Publication of AT363807BpublicationCriticalpatent/AT363807B/de