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 Rensburg Van Willem Johannes J, Jacobus Petrus Van Zyl, Christoffel Jacobus GiliomeefiledCriticalRensburg Van Willem Johannes J
Publication of ZA982357BpublicationCriticalpatent/ZA982357B/en