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Priority claimed from IT21450/85Aexternal-prioritypatent/IT1188179B/it
Application filed by Snam ProgettifiledCriticalSnam Progetti
Publication of NO870719D0publicationCriticalpatent/NO870719D0/no
Publication of NO870719LpublicationCriticalpatent/NO870719L/no
Publication of NO165440BpublicationCriticalpatent/NO165440B/no
Publication of NO165440CpublicationCriticalpatent/NO165440C/no