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 BarnardfiledCriticalJ Barnard
Priority to ZA82129ApriorityCriticalpatent/ZA82129B/en
Publication of ZA82129BpublicationCriticalpatent/ZA82129B/en