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Priority claimed from AT0337982Aexternal-prioritypatent/AT379149B/de
Application filed by DegussafiledCriticalDegussa
Priority to AT0147784ApriorityCriticalpatent/AT379150B/de
Publication of ATA147784ApublicationCriticalpatent/ATA147784A/de
Application grantedgrantedCritical
Publication of AT379150BpublicationCriticalpatent/AT379150B/de