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 Leer South Africa LtdfiledCriticalLeer South Africa Ltd
Priority to ZA9703747ApriorityCriticalpatent/ZA973747B/en
Publication of ZA973747BpublicationCriticalpatent/ZA973747B/en