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 Gian Paolo Ferri, Gianni FavafiledCriticalGian Paolo Ferri
Priority to IT40068/81ApriorityCriticalpatent/IT1146353B/it
Publication of IT8140068A0publicationCriticalpatent/IT8140068A0/it
Application grantedgrantedCritical
Publication of IT1146353BpublicationCriticalpatent/IT1146353B/it