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 IN605MA1991external-prioritypatent/IN173128B/en
Application filed by Astra Resarch Centre IndiafiledCriticalAstra Resarch Centre India
Priority to IN760MA1991priorityCriticalpatent/IN173645B/en
Publication of IN173645BpublicationCriticalpatent/IN173645B/en