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Priority claimed from FR7635867Aexternal-prioritypatent/FR2371230A2/fr
Priority claimed from AT72177Aexternal-prioritypatent/AT353231B/de
Application filed by Metaux Speciaux SafiledCriticalMetaux Speciaux Sa
Priority to AT2679ApriorityCriticalpatent/AT372933B/de
Publication of ATA2679ApublicationCriticalpatent/ATA2679A/de
Application grantedgrantedCritical
Publication of AT372933BpublicationCriticalpatent/AT372933B/de