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 US07/045,094external-prioritypatent/US4812173A/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
Priority to SG176094ApriorityCriticalpatent/SG176094G/en
Publication of SG176094GpublicationCriticalpatent/SG176094G/en