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Priority claimed from IT29525/75Aexternal-prioritypatent/IT1054410B/it
Publication of NO843814LpublicationCriticalpatent/NO843814L/no
Application filed by Montedison Spa, Mitsui Petrochemical IndfiledCriticalMontedison Spa
Priority to NO843814ApriorityCriticalpatent/NO159097C/no
Publication of NO159097BpublicationCriticalpatent/NO159097B/no
Publication of NO159097CpublicationCriticalpatent/NO159097C/no