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Priority claimed from IT1974876Aexternal-prioritypatent/IT1054583B/it
Priority claimed from IT2525776Aexternal-prioritypatent/IT1065073B/it
Application filed by Snam ProgettifiledCriticalSnam Progetti
Priority to AT370179ApriorityCriticalpatent/AT368174B/de
Publication of ATA370179ApublicationCriticalpatent/ATA370179A/de
Application grantedgrantedCritical
Publication of AT368174BpublicationCriticalpatent/AT368174B/de