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 Frederick Bothma John, Ronald Bothma Paul, John Andrew BothmafiledCriticalFrederick Bothma John
Priority to ZA883396ApriorityCriticalpatent/ZA883396B/en
Publication of ZA883396BpublicationCriticalpatent/ZA883396B/en