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 Lo Cheng ChifiledCriticalLo Cheng Chi
Priority to ZA200006625ApriorityCriticalpatent/ZA200006625B/en
Publication of ZA200006625BpublicationCriticalpatent/ZA200006625B/en