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 C A Wolfaard & B M NkomofiledCriticalC A Wolfaard & B M Nkomo
Priority to ZA894165ApriorityCriticalpatent/ZA894165B/en
Publication of ZA894165BpublicationCriticalpatent/ZA894165B/en