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 W RodewaldfiledCriticalW Rodewald
Priority to ZA724120ApriorityCriticalpatent/ZA724120B/en
Publication of ZA724120BpublicationCriticalpatent/ZA724120B/en