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 NO862728Aexternal-prioritypatent/NO161433C/no
Application filed by Norske Stats OljeselskapfiledCriticalNorske Stats Oljeselskap
Application grantedgrantedCritical
Publication of ATE56800T1publicationCriticalpatent/ATE56800T1/de