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 Liftco Closed CorpfiledCriticalLiftco Closed Corp
Priority to ZA897578ApriorityCriticalpatent/ZA897578B/en
Publication of ZA897578BpublicationCriticalpatent/ZA897578B/en