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 Kalyan Kumar SenguptafiledCriticalKalyan Kumar Sengupta
Priority to IN1354DE1993priorityCriticalpatent/IN189051B/en
Publication of IN189051BpublicationCriticalpatent/IN189051B/en