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Priority to JP1990002203UpriorityCriticalpatent/JP2550524Y2/ja
Priority to KR2019910000164Uprioritypatent/KR960007470Y1/ko
Publication of JPH0392967UpublicationCriticalpatent/JPH0392967U/ja
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Publication of JP2550524Y2publicationCriticalpatent/JP2550524Y2/ja
