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Priority to JP5616489UpriorityCriticalpatent/JPH02146610U/ja
Priority to PCT/JP1989/001105prioritypatent/WO1990004801A1/ja
Priority to US07/499,549prioritypatent/US5163109A/en
Priority to KR1019900701358Aprioritypatent/KR900702390A/ko
Publication of JPH02146610UpublicationCriticalpatent/JPH02146610U/ja
Priority to US07/900,734prioritypatent/US5229656A/en
Priority to US07/900,841prioritypatent/US5283680A/en