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Priority to JP5656486UpriorityCriticalpatent/JPH0426871Y2/ja
Priority to US07/033,223prioritypatent/US4753084A/en
Priority to KR1019870003164Aprioritypatent/KR940000402B1/ko
Publication of JPS62167078UpublicationCriticalpatent/JPS62167078U/ja
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Publication of JPH0426871Y2publicationCriticalpatent/JPH0426871Y2/ja