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Priority to JP1975047453UpriorityCriticalpatent/JPS5531099Y2/ja
Priority to IT4946675Aprioritypatent/IT1040603B/it
Publication of JPS51126610UpublicationCriticalpatent/JPS51126610U/ja
Application grantedgrantedCritical
Publication of JPS5531099Y2publicationCriticalpatent/JPS5531099Y2/ja
