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 IN482/CAL/88Aexternal-prioritypatent/IN170051B/en
Application filed by Hoechst Celanese CorpfiledCriticalHoechst Celanese Corp
Priority to IN152CA1991priorityCriticalpatent/IN173300B/en
Publication of IN173300BpublicationCriticalpatent/IN173300B/en