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Priority claimed from DE19752515094external-prioritypatent/DE2515094C3/en
Application filed by Joens & Co Gmbh W HfiledCriticalJoens & Co Gmbh W H
Priority claimed from AT706877Aexternal-prioritypatent/AT352953B/en
Publication of ATA191377ApublicationCriticalpatent/ATA191377A/en
Application grantedgrantedCritical
Publication of AT352221BpublicationCriticalpatent/AT352221B/en