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Priority claimed from NO823327Aexternal-prioritypatent/NO160085C/no
Publication of NO874042LpublicationCriticalpatent/NO874042L/no
Application filed by Ici PlcfiledCriticalIci Plc
Priority to NO874042ApriorityCriticalpatent/NO168895C/no
Publication of NO874042D0publicationCriticalpatent/NO874042D0/no
Publication of NO168895BpublicationCriticalpatent/NO168895B/no
Publication of NO168895CpublicationCriticalpatent/NO168895C/no