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 Westhuizen J V DfiledCriticalWesthuizen J V D
Priority to ZA703613ApriorityCriticalpatent/ZA703613B/en
Publication of ZA703613BpublicationCriticalpatent/ZA703613B/en