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 IN50/CAL/85Aexternal-prioritypatent/IN164211B/en
Application filed by Lubrizol CorpfiledCriticalLubrizol Corp
Priority to IN449CA1990priorityCriticalpatent/IN172297B/en
Priority to IN928CA1991prioritypatent/IN173209B/en
Publication of IN172297BpublicationCriticalpatent/IN172297B/en