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 Kenneth Peter HagemannfiledCriticalKenneth Peter Hagemann
Priority to ZA868303ApriorityCriticalpatent/ZA868303B/en
Publication of ZA868303BpublicationCriticalpatent/ZA868303B/en