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 Margaret La Grange YvonnefiledCriticalMargaret La Grange Yvonne
Priority to ZA911316ApriorityCriticalpatent/ZA911316B/en
Publication of ZA911316BpublicationCriticalpatent/ZA911316B/en