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Priority to JP1986115436UpriorityCriticalpatent/JPH0350465Y2/ja
Priority to US07/036,746prioritypatent/US4742613A/en
Priority to KR1019870003445Aprioritypatent/KR910001034B1/ko
Publication of JPS6321873UpublicationCriticalpatent/JPS6321873U/ja
Application grantedgrantedCritical
Publication of JPH0350465Y2publicationCriticalpatent/JPH0350465Y2/ja