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Filing date
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Application filed by E ScraggfiledCriticalE Scragg
Priority to ZA730159ApriorityCriticalpatent/ZA73159B/en
Priority to GB5866473Aprioritypatent/GB1425630A/en
Priority to JP49005575Aprioritypatent/JPS5751591B2/ja
Priority to FR7400716Aprioritypatent/FR2327470A1/en
Publication of ZA73159BpublicationCriticalpatent/ZA73159B/en
Priority to US05/610,492prioritypatent/US4025051A/en