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 Sachindra Prosad SahafiledCriticalSachindra Prosad Saha
Priority to IN77/CAL/88ApriorityCriticalpatent/IN168231B/en
Publication of IN168231BpublicationCriticalpatent/IN168231B/en