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 Franz GeiserfiledCriticalFranz Geiser
Priority to IT04847/80ApriorityCriticalpatent/IT1135991B/it
Publication of IT8004847A0publicationCriticalpatent/IT8004847A0/it
Application grantedgrantedCritical
Publication of IT1135991BpublicationCriticalpatent/IT1135991B/it