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 IN835/DEL/84Aexternal-prioritypatent/IN167503B/en
Application filed by Union Carbide CorpfiledCriticalUnion Carbide Corp
Priority to IN624/DEL/87ApriorityCriticalpatent/IN167209B/en
Publication of IN167209BpublicationCriticalpatent/IN167209B/en