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.)
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Publication date
Priority claimed from ZA00806078Aexternal-prioritypatent/ZA806078B/en
Application filed by Anthony William GoodyerfiledCriticalAnthony William Goodyer
Priority to ZA816796ApriorityCriticalpatent/ZA816796B/en
Priority to ZA824239Aprioritypatent/ZA824239B/en
Publication of ZA816796BpublicationCriticalpatent/ZA816796B/en
Priority to US06/625,561prioritypatent/US4504983A/en