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Priority to JP1988106991UpriorityCriticalpatent/JPH0228594U/ja
Priority to CN89104440Aprioritypatent/CN1017370B/zh
Priority to KR1019890010359Aprioritypatent/KR900003542A/ko
Priority to EP89402285Aprioritypatent/EP0356314A3/en
Publication of JPH0228594UpublicationCriticalpatent/JPH0228594U/ja