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 Ramnarayan ChakrabortyfiledCriticalRamnarayan Chakraborty
Priority to IN368/CAL/84ApriorityCriticalpatent/IN160936B/en
Publication of IN160936BpublicationCriticalpatent/IN160936B/en