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 Vyzk Ustav PetrochemfiledCriticalVyzk Ustav Petrochem
Priority to IT20969/86ApriorityCriticalpatent/IT1190140B/it
Publication of IT8620969A0publicationCriticalpatent/IT8620969A0/it
Publication of IT8620969A1publicationCriticalpatent/IT8620969A1/it
Application grantedgrantedCritical
Publication of IT1190140BpublicationCriticalpatent/IT1190140B/it