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.)
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Publication date
Application filed by Aeci LtdfiledCriticalAeci Ltd
Priority to ZA00775305ApriorityCriticalpatent/ZA775305B/en
Priority to AU38675/78Aprioritypatent/AU3867578A/en
Publication of ZA775305BpublicationCriticalpatent/ZA775305B/en