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Priority claimed from GB35337/67Aexternal-prioritypatent/GB1241948A/en
Priority claimed from GB984968Aexternal-prioritypatent/GB1251672A/en
Priority claimed from GB27901/68Aexternal-prioritypatent/GB1263266A/en
Application filed by Ici LtdfiledCriticalIci Ltd
Publication of YU182568ApublicationCriticalpatent/YU182568A/en
Publication of YU32706BpublicationCriticalpatent/YU32706B/en