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 Michiel Daniel De KockfiledCriticalMichiel Daniel De Kock
Priority to ZA200002596ApriorityCriticalpatent/ZA200002596B/en
Publication of ZA200002596BpublicationCriticalpatent/ZA200002596B/en