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Priority claimed from GB838314707Aexternal-prioritypatent/GB8314707D0/en
Priority claimed from NO834475Aexternal-prioritypatent/NO162196C/en
Publication of NO880895LpublicationCriticalpatent/NO880895L/en
Application filed by Ici PlcfiledCriticalIci Plc
Priority to NO880895ApriorityCriticalpatent/NO880895D0/en
Publication of NO880895D0publicationCriticalpatent/NO880895D0/en