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
Application filed by Hoechst Celanese CorpfiledCriticalHoechst Celanese Corp
Priority to IN272CA1991priorityCriticalpatent/IN172666B/en
Priority to IN184CA1993prioritypatent/IN177549B/en
Publication of IN172666BpublicationCriticalpatent/IN172666B/en
