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Priority to JP19396087UpriorityCriticalpatent/JPH0414540Y2/ja
Priority to KR2019880018898Uprioritypatent/KR910005047Y1/ko
Publication of JPH0198272UpublicationCriticalpatent/JPH0198272U/ja
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Publication of JPH0414540Y2publicationCriticalpatent/JPH0414540Y2/ja