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 Central Electr Generat BoardfiledCriticalCentral Electr Generat Board
Priority to ZA861380ApriorityCriticalpatent/ZA861380B/en
Publication of ZA861380BpublicationCriticalpatent/ZA861380B/en