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 Advance Transformer CofiledCriticalAdvance Transformer Co
Priority to ZA711705ApriorityCriticalpatent/ZA711705B/en
Publication of ZA711705BpublicationCriticalpatent/ZA711705B/en