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 NO3999/70Aexternal-prioritypatent/NO136499C/no
Publication of NO763965LpublicationCriticalpatent/NO763965L/no
Application filed by Ici LtdfiledCriticalIci Ltd
Priority to NO763965ApriorityCriticalpatent/NO138342C/no
Publication of NO138342BpublicationCriticalpatent/NO138342B/no
Publication of NO138342CpublicationCriticalpatent/NO138342C/no