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Priority claimed from DE2926581Aexternal-prioritypatent/DE2926581C2/de
Application filed by Bentler Heinz BesaplastfiledCriticalBentler Heinz Besaplast
Priority to AT188482ApriorityCriticalpatent/AT376742B/de
Publication of ATA188482ApublicationCriticalpatent/ATA188482A/de
Application grantedgrantedCritical
Publication of AT376742BpublicationCriticalpatent/AT376742B/de