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Priority to JP1987194183UpriorityCriticalpatent/JPH0539588Y2/ja
Priority to US07/287,085prioritypatent/US4875862A/en
Publication of JPH0196666UpublicationCriticalpatent/JPH0196666U/ja
Application grantedgrantedCritical
Publication of JPH0539588Y2publicationCriticalpatent/JPH0539588Y2/ja
