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Publication date
Priority claimed from IT2263879Aexternal-prioritypatent/IT1166822B/it
Priority claimed from AT0438279Aexternal-prioritypatent/AT381483B/de
Application filed by Snam ProgettifiledCriticalSnam Progetti
Priority to AT224483ApriorityCriticalpatent/AT384203B/de
Publication of ATA224483ApublicationCriticalpatent/ATA224483A/de
Application grantedgrantedCritical
Publication of AT384203BpublicationCriticalpatent/AT384203B/de