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 Cornelis Johannes Pieterse, Daniel Johannes Pieterse, Hendrik Christiaan PietersefiledCriticalCornelis Johannes Pieterse
Publication of ZA201107561BpublicationCriticalpatent/ZA201107561B/en