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 M M & G Eng LtdfiledCriticalM M & G Eng Ltd
Priority to ZA00747130ApriorityCriticalpatent/ZA747130B/en
Publication of ZA747130BpublicationCriticalpatent/ZA747130B/en