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Priority to JP1988154228UpriorityCriticalpatent/JP2519439Y2/ja
Priority to KR1019890017379Aprioritypatent/KR930007622B1/ko
Priority to US07/442,775prioritypatent/US5034755A/en
Publication of JPH0276035UpublicationCriticalpatent/JPH0276035U/ja
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Publication of JP2519439Y2publicationCriticalpatent/JP2519439Y2/ja