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 PirellifiledCriticalPirelli
Priority to IT26718/80ApriorityCriticalpatent/IT1134765B/en
Publication of IT8026718A0publicationCriticalpatent/IT8026718A0/en
Application grantedgrantedCritical
Publication of IT1134765BpublicationCriticalpatent/IT1134765B/en