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Priority to JP1794371ApriorityCriticalpatent/JPS5425419B1/ja
Priority to GB748572Aprioritypatent/GB1366810A/en
Priority to DE19722207353prioritypatent/DE2207353C2/de
Priority to FR7205485Aprioritypatent/FR2126012A5/fr
Priority to US05/437,706prioritypatent/US3973955A/en
Publication of JPS5425419B1publicationCriticalpatent/JPS5425419B1/ja