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 Neville Harold WarringtonfiledCriticalNeville Harold Warrington
Priority to ZA985906ApriorityCriticalpatent/ZA985906B/en
Publication of ZA985906BpublicationCriticalpatent/ZA985906B/en