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 IN17/CAL/77Aexternal-prioritypatent/IN145754B/en
Priority claimed from DE19772718857external-prioritypatent/DE2718857A1/de
Priority claimed from DE19772718858external-prioritypatent/DE2718858A1/de
Application filed by Hoechst AgfiledCriticalHoechst Ag
Priority to IN422/CAL/78ApriorityCriticalpatent/IN149555B/en
Publication of IN149555BpublicationCriticalpatent/IN149555B/en