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 NO802263Aexternal-prioritypatent/NO802263L/no
Application filed by Elkem AsfiledCriticalElkem As
Priority to NO812472ApriorityCriticalpatent/NO146693C/no
Publication of NO812472LpublicationCriticalpatent/NO812472L/no
Publication of NO146693BpublicationCriticalpatent/NO146693B/no
Publication of NO146693CpublicationCriticalpatent/NO146693C/no