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 South African Iron & SteelfiledCriticalSouth African Iron & Steel
Priority to ZA717630ApriorityCriticalpatent/ZA717630B/en
Publication of ZA717630BpublicationCriticalpatent/ZA717630B/en