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Priority to JP1989049132UpriorityCriticalpatent/JPH0525432Y2/ja
Priority to CN90102419Aprioritypatent/CN1015045B/zh
Priority to KR1019900005862Aprioritypatent/KR900015619A/ko
Publication of JPH02138583UpublicationCriticalpatent/JPH02138583U/ja
Priority to KR9225450Uprioritypatent/KR930001610Y1/ko
Application grantedgrantedCritical
Publication of JPH0525432Y2publicationCriticalpatent/JPH0525432Y2/ja