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Priority claimed from GB848422414Aexternal-prioritypatent/GB8422414D0/en
Priority claimed from GB848422415Aexternal-prioritypatent/GB8422415D0/en
Priority claimed from GB858508111Aexternal-prioritypatent/GB8508111D0/en
Priority claimed from YU1380/85Aexternal-prioritypatent/YU44520B/en
Application filed by Ici PlcfiledCriticalIci Plc
Publication of YU39387ApublicationCriticalpatent/YU39387A/en
Publication of YU44619BpublicationCriticalpatent/YU44619B/en