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 A DudukfiledCriticalA Duduk
Priority to ZA723977ApriorityCriticalpatent/ZA723977B/en
Publication of ZA723977BpublicationCriticalpatent/ZA723977B/en