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Priority to JP1988036411UpriorityCriticalpatent/JPH01140599U/ja
Priority to KR1019890002516Aprioritypatent/KR920004102B1/ko
Priority to US07/321,737prioritypatent/US4995292A/en
Priority to GB8905698Aprioritypatent/GB2216707B/en
Publication of JPH01140599UpublicationCriticalpatent/JPH01140599U/ja