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 Indian Oil Corp LtdfiledCriticalIndian Oil Corp Ltd
Priority to IN315BO1990priorityCriticalpatent/IN173171B/en
Publication of IN173171BpublicationCriticalpatent/IN173171B/en
