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 IN2/MAS/87Aexternal-prioritypatent/IN169161B/en
Application filed by Union Carbide CorpfiledCriticalUnion Carbide Corp
Priority to IN854MA1990priorityCriticalpatent/IN172437B/en
Publication of IN172437BpublicationCriticalpatent/IN172437B/en