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 IN628/MAS/86Aexternal-prioritypatent/IN163760B/en
Application filed by Union Oil CofiledCriticalUnion Oil Co
Priority to IN519/MAS/88ApriorityCriticalpatent/IN167579B/en
Publication of IN167579BpublicationCriticalpatent/IN167579B/en