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
Application filed by Alcan Alluminio S P AfiledCriticalAlcan Alluminio S P A
Priority to IT22077UpriorityCriticalpatent/IT218831Z2/it
Publication of IT8922077V0publicationCriticalpatent/IT8922077V0/it
Publication of IT8922077U1publicationCriticalpatent/IT8922077U1/it
Application grantedgrantedCritical
Publication of IT218831Z2publicationCriticalpatent/IT218831Z2/it