Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Priority to JP1989131224UpriorityCriticalpatent/JPH0369543U/ja
Priority to US07/610,018prioritypatent/US5123622A/en
Priority to KR1019900018202Aprioritypatent/KR930010157B1/ko
Priority to EP19900312310prioritypatent/EP0427573A3/en
Publication of JPH0369543UpublicationCriticalpatent/JPH0369543U/ja
