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 Brenda PitoutfiledCriticalBrenda Pitout
Priority to ZA851173ApriorityCriticalpatent/ZA851173B/en
Publication of ZA851173BpublicationCriticalpatent/ZA851173B/en