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 SolvayfiledCriticalSolvay
Priority to ZA00743767ApriorityCriticalpatent/ZA743767B/en
Publication of ZA743767BpublicationCriticalpatent/ZA743767B/en