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 Nat Res Dev IndiafiledCriticalNat Res Dev India
Priority to IN76/DEL/87ApriorityCriticalpatent/IN167920B/en
Publication of IN167920BpublicationCriticalpatent/IN167920B/en