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 Francois Jacobus RetieffiledCriticalFrancois Jacobus Retief
Priority to ZA99708ApriorityCriticalpatent/ZA99708B/en
Publication of ZA99708BpublicationCriticalpatent/ZA99708B/en