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 Parthasarathy Shyamala NathanfiledCriticalParthasarathy Shyamala Nathan
Priority to IN447/MAS/87ApriorityCriticalpatent/IN169963B/en
Publication of IN169963BpublicationCriticalpatent/IN169963B/en