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 Protolec LtdfiledCriticalProtolec Ltd
Priority to ZA785530ApriorityCriticalpatent/ZA785530B/en
Publication of ZA785530BpublicationCriticalpatent/ZA785530B/en