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 Costan SpafiledCriticalCostan Spa
Priority to ZA873023ApriorityCriticalpatent/ZA873023B/en
Publication of ZA873023BpublicationCriticalpatent/ZA873023B/en