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 Union Chimique Belge SafiledCriticalUnion Chimique Belge Sa
Priority to BE595545ApriorityCriticalpatent/BE595545A/en
Publication of BE595545ApublicationCriticalpatent/BE595545A/en