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 IN274/DEL/78Aexternal-prioritypatent/IN148903B/en
Application filed by Ici Ltd, Ici America IncfiledCriticalIci Ltd
Priority to IN130/DEL/80ApriorityCriticalpatent/IN148992B/en
Publication of IN148992BpublicationCriticalpatent/IN148992B/en