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 Abraham Adriaan Van Den BergfiledCriticalAbraham Adriaan Van Den Berg
Priority to ZA200303225ApriorityCriticalpatent/ZA200303225B/en
Publication of ZA200303225BpublicationCriticalpatent/ZA200303225B/en