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Priority to JP1990101057UpriorityCriticalpatent/JPH0459370U/ja
Priority to KR1019910016209Aprioritypatent/KR950000233B1/ko
Priority to US07/764,875prioritypatent/US5139003A/en
Priority to DE4132310Aprioritypatent/DE4132310C2/de
Publication of JPH0459370UpublicationCriticalpatent/JPH0459370U/ja
