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 Dulal DuttafiledCriticalDulal Dutta
Priority to IN422/CAL/86ApriorityCriticalpatent/IN165647B/en
Publication of IN165647BpublicationCriticalpatent/IN165647B/en