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 Detroit Tool & Eng CofiledCriticalDetroit Tool & Eng Co
Publication of IT7849786A0publicationCriticalpatent/IT7849786A0/it
Application grantedgrantedCritical
Publication of IT1105362BpublicationCriticalpatent/IT1105362B/it