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 Hans WesselfiledCriticalHans Wessel
Priority to IT20418/84ApriorityCriticalpatent/IT1175971B/it
Publication of IT8420418A0publicationCriticalpatent/IT8420418A0/it
Application grantedgrantedCritical
Publication of IT1175971BpublicationCriticalpatent/IT1175971B/it