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 Nya Asfalt AbfiledCriticalNya Asfalt Ab
Priority to ZA704621ApriorityCriticalpatent/ZA704621B/en
Publication of ZA704621BpublicationCriticalpatent/ZA704621B/en