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 Ici PlcfiledCriticalIci Plc
Priority to ZA818206ApriorityCriticalpatent/ZA818206B/en
Publication of ZA818206BpublicationCriticalpatent/ZA818206B/en