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 Benoy Langdon ArthurfiledCriticalBenoy Langdon Arthur
Priority to ZA877935ApriorityCriticalpatent/ZA877935B/en
Publication of ZA877935BpublicationCriticalpatent/ZA877935B/en