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Priority to JP13362688UpriorityCriticalpatent/JPH0544196Y2/ja
Priority to US07/279,102prioritypatent/US4976385A/en
Priority to KR1019880017143Aprioritypatent/KR890009683A/ko
Publication of JPH0254648UpublicationCriticalpatent/JPH0254648U/ja
Application grantedgrantedCritical
Publication of JPH0544196Y2publicationCriticalpatent/JPH0544196Y2/ja