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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Application filed by South African InventionsfiledCriticalSouth African Inventions
Priority to ZA00777208ApriorityCriticalpatent/ZA777208B/en
Priority to US05/964,843prioritypatent/US4307397A/en
Priority to JP14988678Aprioritypatent/JPS5496067A/en
Priority to FR7834068Aprioritypatent/FR2410829A1/en
Priority to GB7847025Aprioritypatent/GB2011750B/en
Priority to CH1241378Aprioritypatent/CH625348A5/fr
Publication of ZA777208BpublicationCriticalpatent/ZA777208B/en