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Priority to JP587589UpriorityCriticalpatent/JPH0296472U/ja
Priority to US07/466,846prioritypatent/US5054329A/en
Publication of JPH0296472UpublicationCriticalpatent/JPH0296472U/ja
Priority to KR2019930001090Uprioritypatent/KR930005301Y1/ko
