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Priority claimed from DE19722255860external-prioritypatent/DE2255860A1/de
Priority claimed from AT323173Aexternal-prioritypatent/AT351398B/de
Application filed by Siegenia Frank KgfiledCriticalSiegenia Frank Kg
Publication of ATA671475ApublicationCriticalpatent/ATA671475A/de
Application grantedgrantedCritical
Publication of AT365276BpublicationCriticalpatent/AT365276B/de