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 Hosbed LtdfiledCriticalHosbed Ltd
Priority to ZA763912ApriorityCriticalpatent/ZA763912B/en
Priority to DE19772729679prioritypatent/DE2729679A1/en
Publication of ZA763912BpublicationCriticalpatent/ZA763912B/en