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 IT8905204Aexternal-prioritypatent/IT1232774B/en
Priority claimed from IT6921Uexternal-prioritypatent/IT221211Z2/en
Application filed by Maurizio BolzacchinifiledCriticalMaurizio Bolzacchini
Priority claimed from EP90830385Aexternal-prioritypatent/EP0415893B1/en
Application grantedgrantedCritical
Publication of ATE101500T1publicationCriticalpatent/ATE101500T1/en