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Priority to JP8889885UpriorityCriticalpatent/JPH0231260Y2/ja
Priority to KR2019860001516Uprioritypatent/KR910000507Y1/ko
Publication of JPS61205672UpublicationCriticalpatent/JPS61205672U/ja
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Publication of JPH0231260Y2publicationCriticalpatent/JPH0231260Y2/ja
