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
Priority claimed from IT2905570Aexternal-prioritypatent/IT953035B/it
Priority claimed from DK578470Aexternal-prioritypatent/DK143747C/da
Application filed by Snamprogetti S.P.A.filedCriticalSnamprogetti S.P.A.
Priority to DK273675ApriorityCriticalpatent/DK141579B/da
Publication of DK273675ApublicationCriticalpatent/DK273675A/da
Publication of DK141579BpublicationCriticalpatent/DK141579B/da
Application grantedgrantedCritical
Publication of DK141579CpublicationCriticalpatent/DK141579C/da