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Priority to JP14721776UpriorityCriticalpatent/JPS5364444U/ja
Priority to FR7732127Aprioritypatent/FR2369147A1/fr
Priority to DE2748061Aprioritypatent/DE2748061C2/de
Publication of JPS5364444UpublicationCriticalpatent/JPS5364444U/ja
Priority to US06/051,518prioritypatent/US4280582A/en