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Priority to JP1986171033UpriorityCriticalpatent/JPS6378405U/ja
Priority to KR1019870012070Aprioritypatent/KR900009111B1/ko
Priority to EP87116278Aprioritypatent/EP0274592B1/en
Priority to DE87116278Tprioritypatent/DE3787964T2/de
Publication of JPS6378405UpublicationCriticalpatent/JPS6378405U/ja
Priority to US07/434,573prioritypatent/US4987424A/en