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Priority to JP2127472ApriorityCriticalpatent/JPS5840146B2/ja
Priority to GB826973Aprioritypatent/GB1382226A/en
Priority to FR7307172Aprioritypatent/FR2174181B1/fr
Publication of JPS4890561ApublicationCriticalpatent/JPS4890561A/ja
Publication of JPS5840146B2publicationCriticalpatent/JPS5840146B2/ja