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 J MckenziefiledCriticalJ Mckenzie
Priority to ZA703385ApriorityCriticalpatent/ZA703385B/en
Publication of ZA703385BpublicationCriticalpatent/ZA703385B/en