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Priority to JP1981108302UpriorityCriticalpatent/JPS5816774U/ja
Priority to KR2019820002222Uprioritypatent/KR860001551Y1/ko
Publication of JPS5816774UpublicationCriticalpatent/JPS5816774U/ja
Application grantedgrantedCritical
Publication of JPS6216461Y2publicationCriticalpatent/JPS6216461Y2/ja