Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from IT25232/77Aexternal-prioritypatent/IT1080687B/it
Publication of NO832969LpublicationCriticalpatent/NO832969L/no
Application filed by Snam Progetti, Anic SpafiledCriticalSnam Progetti
Priority to NO832969ApriorityCriticalpatent/NO159173C/no
Publication of NO159173BpublicationCriticalpatent/NO159173B/no
Publication of NO159173CpublicationCriticalpatent/NO159173C/no