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Priority to JP1447190UpriorityCriticalpatent/JPH03104480U/ja
Priority to EP90120793Aprioritypatent/EP0426107B1/en
Priority to DE69009002Tprioritypatent/DE69009002T2/de
Priority to US07/606,201prioritypatent/US5061009A/en
Priority to KR2019900016813Uprioritypatent/KR940007252Y1/ko
Publication of JPH03104480UpublicationCriticalpatent/JPH03104480U/ja