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 IN634DE1989external-prioritypatent/IN175438B/en
Application filed by PfizerfiledCriticalPfizer
Priority to IN19DE1992priorityCriticalpatent/IN178925B/en
Publication of IN178925BpublicationCriticalpatent/IN178925B/en