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Priority to JP1983176966UpriorityCriticalpatent/JPS6087184U/ja
Priority to DE3427261Aprioritypatent/DE3427261C2/de
Priority to KR2019840007956Uprioritypatent/KR890003942Y1/ko
Publication of JPS6087184UpublicationCriticalpatent/JPS6087184U/ja
Priority to US07/062,404prioritypatent/US4725239A/en
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Publication of JPH0212697Y2publicationCriticalpatent/JPH0212697Y2/ja