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Priority to JP1987193867UpriorityCriticalpatent/JPH0610162Y2/ja
Priority to KR1019880005970Aprioritypatent/KR920002737B1/ko
Publication of JPH0198301UpublicationCriticalpatent/JPH0198301U/ja
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Publication of JPH0610162Y2publicationCriticalpatent/JPH0610162Y2/ja