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 IN679/DEL/86Aexternal-prioritypatent/IN167835B/en
Application filed by Lubrizol CorpfiledCriticalLubrizol Corp
Priority to IN399DE1989priorityCriticalpatent/IN176271B/en
Publication of IN176271BpublicationCriticalpatent/IN176271B/en
