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Priority to JP3271188UpriorityCriticalpatent/JPH0512687Y2/ja
Priority to KR2019890002794Uprioritypatent/KR930004478Y1/ko
Publication of JPH01136871UpublicationCriticalpatent/JPH01136871U/ja
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Publication of JPH0512687Y2publicationCriticalpatent/JPH0512687Y2/ja