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Priority to JP388973ApriorityCriticalpatent/JPS4991182A/ja
Priority to US427656Aprioritypatent/US3909635A/en
Priority to FR7347004Aprioritypatent/FR2212709B1/fr
Priority to DE2364823Aprioritypatent/DE2364823A1/de
Publication of JPS4991182ApublicationCriticalpatent/JPS4991182A/ja