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Priority to JP1987068152UpriorityCriticalpatent/JPH0754663Y2/ja
Priority to US07/192,336prioritypatent/US4830518A/en
Publication of JPS63177324UpublicationCriticalpatent/JPS63177324U/ja
Application grantedgrantedCritical
Publication of JPH0754663Y2publicationCriticalpatent/JPH0754663Y2/ja
