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 IN682/CAL/81Aexternal-prioritypatent/IN154625B/en
Application filed by Union Carbide CorpfiledCriticalUnion Carbide Corp
Priority to IN352/CAL/84ApriorityCriticalpatent/IN157471B/en
Publication of IN157471BpublicationCriticalpatent/IN157471B/en