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Priority claimed from DE2411743Aexternal-prioritypatent/DE2411743C3/de
Application filed by Gut MaxfiledCriticalGut Max
Priority to AT252177ApriorityCriticalpatent/AT351552B/de
Priority to AT252077Aprioritypatent/AT353280B/de
Publication of ATA76977ApublicationCriticalpatent/ATA76977A/de
Application grantedgrantedCritical
Publication of AT348218BpublicationCriticalpatent/AT348218B/de