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Priority to JP11306588UpriorityCriticalpatent/JPH0732228Y2/ja
Priority to KR2019880018912Uprioritypatent/KR930006629Y1/ko
Publication of JPH0296212UpublicationCriticalpatent/JPH0296212U/ja
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Publication of JPH0732228Y2publicationCriticalpatent/JPH0732228Y2/ja