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 IN320/CAL/79Aexternal-prioritypatent/IN152087B/en
Application filed by Union Carbide CorpfiledCriticalUnion Carbide Corp
Priority to IN678/CAL/82ApriorityCriticalpatent/IN155691B/en
Publication of IN155691BpublicationCriticalpatent/IN155691B/en