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 US07/895,965external-prioritypatent/US5268062A/en
Application filed by Ciba Geigy AgfiledCriticalCiba Geigy Ag
Application grantedgrantedCritical
Publication of TW225547BpublicationCriticalpatent/TW225547B/zh