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 A K BhattacharjyafiledCriticalA K Bhattacharjya
Priority to IN271/CAL/1976ApriorityCriticalpatent/IN143932B/en
Publication of IN143932BpublicationCriticalpatent/IN143932B/en
