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Priority to JP8582988UpriorityCriticalpatent/JPH0524024Y2/ja
Priority to KR2019880021667Uprioritypatent/KR930003859Y1/ko
Publication of JPH027530UpublicationCriticalpatent/JPH027530U/ja
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Publication of JPH0524024Y2publicationCriticalpatent/JPH0524024Y2/ja