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.)
Filing date
Publication date
Priority claimed from IT2321477Aexternal-prioritypatent/IT1107738B/it
Priority claimed from IT2321377Aexternal-prioritypatent/IT1107736B/it
Priority claimed from IT2371077Aexternal-prioritypatent/IT1109458B/it
Application filed by Montedison SpafiledCriticalMontedison Spa
Publication of PL206617A1publicationCriticalpatent/PL206617A1/pl
Publication of PL120415B1publicationCriticalpatent/PL120415B1/pl