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Priority to JP1989012049UpriorityCriticalpatent/JP2522514Y2/ja
Priority to US07/473,583prioritypatent/US5056690A/en
Publication of JPH02102389UpublicationCriticalpatent/JPH02102389U/ja
Application grantedgrantedCritical
Publication of JP2522514Y2publicationCriticalpatent/JP2522514Y2/ja
