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 Terence Alexander O BrienfiledCriticalTerence Alexander O Brien
Priority to ZA877264ApriorityCriticalpatent/ZA877264B/en
Publication of ZA877264BpublicationCriticalpatent/ZA877264B/en