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 IT22800/79Aexternal-prioritypatent/IT1114242B/en
Priority claimed from IT22801/79Aexternal-prioritypatent/IT1114281B/en
Application filed by Montedison S.P.A., Moplefan S.P.A.filedCriticalMontedison S.P.A.
Priority claimed from EP80102722Aexternal-prioritypatent/EP0021017B1/en
Application grantedgrantedCritical
Publication of ATE5955T1publicationCriticalpatent/ATE5955T1/en