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Priority to JP1987193575UpriorityCriticalpatent/JPH0524594Y2/ja
Priority to US07/279,102prioritypatent/US4976385A/en
Priority to KR1019880017143Aprioritypatent/KR890009683A/ko
Publication of JPH01106327UpublicationCriticalpatent/JPH01106327U/ja
Application grantedgrantedCritical
Publication of JPH0524594Y2publicationCriticalpatent/JPH0524594Y2/ja