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 FR8502212Aexternal-prioritypatent/FR2577546B1/en
Application filed by Elf FrancefiledCriticalElf France
Publication of NO864104D0publicationCriticalpatent/NO864104D0/en
Publication of NO864104LpublicationCriticalpatent/NO864104L/en
Publication of NO170591BpublicationCriticalpatent/NO170591B/en
Publication of NO170591CpublicationCriticalpatent/NO170591C/en