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 Hollandse Plastic IndfiledCriticalHollandse Plastic Ind
Priority to ZA732177ApriorityCriticalpatent/ZA732177B/en
Publication of ZA732177BpublicationCriticalpatent/ZA732177B/en