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 Alewyn Johannes Krit CorneliusfiledCriticalAlewyn Johannes Krit Cornelius
Priority claimed from EP88310447Aexternal-prioritypatent/EP0367870B1/en
Publication of ZA873618BpublicationCriticalpatent/ZA873618B/en