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Application filed by Snam ProgettifiledCriticalSnam Progetti
Priority to IT19549/86ApriorityCriticalpatent/IT1190611B/it
Publication of IT8619549A0publicationCriticalpatent/IT8619549A0/it
Priority to HU87723Aprioritypatent/HUT43019A/hu
Publication of IT8619549A1publicationCriticalpatent/IT8619549A1/it
Application grantedgrantedCritical
Publication of IT1190611BpublicationCriticalpatent/IT1190611B/it