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Priority to JP17734585UpriorityCriticalpatent/JPH0437348Y2/ja
Priority to KR1019860007930Aprioritypatent/KR960004071B1/ko
Publication of JPS6285969UpublicationCriticalpatent/JPS6285969U/ja
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Publication of JPH0437348Y2publicationCriticalpatent/JPH0437348Y2/ja
