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 Ishizuka HiroshifiledCriticalIshizuka Hiroshi
Priority to ZA760042ApriorityCriticalpatent/ZA7642B/en
Publication of ZA7642BpublicationCriticalpatent/ZA7642B/en