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 Risien BarryfiledCriticalRisien Barry
Priority to ZA917770ApriorityCriticalpatent/ZA917770B/en
Publication of ZA917770BpublicationCriticalpatent/ZA917770B/en