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 R CoetzeefiledCriticalR Coetzee
Priority to ZA704602ApriorityCriticalpatent/ZA704602B/en
Priority to AU31771/71Aprioritypatent/AU3177171A/en
Publication of ZA704602BpublicationCriticalpatent/ZA704602B/en