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 Ipi Contractors AgfiledCriticalIpi Contractors Ag
Priority to ZA835295ApriorityCriticalpatent/ZA835295B/en
Publication of ZA835295BpublicationCriticalpatent/ZA835295B/en