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 Ivaldo ZamperlinifiledCriticalIvaldo Zamperlini
Priority to IT20952/82ApriorityCriticalpatent/IT1151330B/it
Publication of IT8220952A0publicationCriticalpatent/IT8220952A0/it
Application grantedgrantedCritical
Publication of IT1151330BpublicationCriticalpatent/IT1151330B/it