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Priority to JP1984117950UpriorityCriticalpatent/JPS6131091U/ja
Priority to GB08518899Aprioritypatent/GB2162412B/en
Priority to KR1019850005493Aprioritypatent/KR900003437B1/ko
Priority to US06/760,836prioritypatent/US4691447A/en
Publication of JPS6131091UpublicationCriticalpatent/JPS6131091U/ja
Application grantedgrantedCritical
Publication of JPH0278Y2publicationCriticalpatent/JPH0278Y2/ja