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 Matthey Johnson Public LtdfiledCriticalMatthey Johnson Public Ltd
Priority to ZA828706ApriorityCriticalpatent/ZA828706B/en
Publication of ZA828706BpublicationCriticalpatent/ZA828706B/en