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
Application filed by Lubrizol CorpfiledCriticalLubrizol Corp
Priority to IN481DE1987priorityCriticalpatent/IN172633B/en
Priority to IN6866DE1990prioritypatent/IN179720B/en
Priority to IN660DE1990prioritypatent/IN179718B/en
Publication of IN172633BpublicationCriticalpatent/IN172633B/en