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 Ciba-Geigy A.G., Bazel, Zwitserland.filedCriticalCiba-Geigy A.G., Bazel, Zwitserland.
Publication of NL141235BpublicationCriticalpatent/NL141235B/xx