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Priority claimed from IT20573/86Aexternal-prioritypatent/IT1190017B/en
Application filed by Snam ProgettifiledCriticalSnam Progetti
Publication of NO880344LpublicationCriticalpatent/NO880344L/en
Publication of NO880344D0publicationCriticalpatent/NO880344D0/en
Publication of NO167198BpublicationCriticalpatent/NO167198B/en
Publication of NO167198CpublicationCriticalpatent/NO167198C/en