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Priority to JP1986108595UpriorityCriticalpatent/JPH0512918Y2/ja
Priority to KR1019870006708Aprioritypatent/KR920001844B1/ko
Priority to EP87109938Aprioritypatent/EP0253316A3/en
Priority to CN 87104930prioritypatent/CN1006344B/zh
Publication of JPS6315556UpublicationCriticalpatent/JPS6315556U/ja
Application grantedgrantedCritical
Publication of JPH0512918Y2publicationCriticalpatent/JPH0512918Y2/ja
