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 Isidore GoldbergfiledCriticalIsidore Goldberg
Priority to ZA849133ApriorityCriticalpatent/ZA849133B/en
Publication of ZA849133BpublicationCriticalpatent/ZA849133B/en