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 Willem Frederik PienaarfiledCriticalWillem Frederik Pienaar
Priority to ZA96773ApriorityCriticalpatent/ZA96773B/en
Publication of ZA96773BpublicationCriticalpatent/ZA96773B/en