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
Priority claimed from IN1617/72Aexternal-prioritypatent/IN137588B/en
Application filed by Nippon Catalytic Chem IndfiledCriticalNippon Catalytic Chem Ind
Priority to IN2057/CAL/74ApriorityCriticalpatent/IN137954B/en
Publication of IN137954BpublicationCriticalpatent/IN137954B/en