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 Petrus Botes HendrikfiledCriticalPetrus Botes Hendrik
Priority to ZA885750ApriorityCriticalpatent/ZA885750B/en
Publication of ZA885750BpublicationCriticalpatent/ZA885750B/en