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Priority to JP8838189UpriorityCriticalpatent/JPH0327895U/ja
Priority to KR1019900002835Aprioritypatent/KR930008349B1/ko
Priority to US07/486,424prioritypatent/US5040952A/en
Publication of JPH0327895UpublicationCriticalpatent/JPH0327895U/ja
