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.)
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Publication date
Priority claimed from IN45/CAL/83Aexternal-prioritypatent/IN158265B/en
Application filed by Lubrizol CorpfiledCriticalLubrizol Corp
Priority to IN501/CAL/86ApriorityCriticalpatent/IN162409B/en
Publication of IN162409BpublicationCriticalpatent/IN162409B/en