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 Fausto Canova, Risso Teclo, Rognoni Pietro, Pisani Giovanni Paolo, Vigevano PaviafiledCriticalFausto Canova
Priority to IT8920450ApriorityCriticalpatent/IT1229263B/en
Publication of IT8920450A0publicationCriticalpatent/IT8920450A0/en
Application grantedgrantedCritical
Publication of IT1229263BpublicationCriticalpatent/IT1229263B/en