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 H PinhofiledCriticalH Pinho
Priority to ZA00742558ApriorityCriticalpatent/ZA742558B/en
Publication of ZA742558BpublicationCriticalpatent/ZA742558B/en