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 Arnold Frank ErnestfiledCriticalArnold Frank Ernest
Priority to ZA8620ApriorityCriticalpatent/ZA8620B/en
Publication of ZA8620BpublicationCriticalpatent/ZA8620B/en