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Priority to JP1988013759UpriorityCriticalpatent/JPH0624012Y2/ja
Priority to US07/293,779prioritypatent/US5124973A/en
Publication of JPH01121124UpublicationCriticalpatent/JPH01121124U/ja
Application grantedgrantedCritical
Publication of JPH0624012Y2publicationCriticalpatent/JPH0624012Y2/ja