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 African Oxygen LtdfiledCriticalAfrican Oxygen Ltd
Priority to ZA00743013ApriorityCriticalpatent/ZA743013B/en
Publication of ZA743013BpublicationCriticalpatent/ZA743013B/en