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 IN2443/CAL/73Aexternal-prioritypatent/IN139905B/en
Application filed by PfizerfiledCriticalPfizer
Priority to IN860/CAL/1976ApriorityCriticalpatent/IN141716B/en
Publication of IN141716BpublicationCriticalpatent/IN141716B/en