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Priority to JP14802584UpriorityCriticalpatent/JPH0324452Y2/ja
Priority to US06/743,491prioritypatent/US4606240A/en
Publication of JPS6162665UpublicationCriticalpatent/JPS6162665U/ja
Application grantedgrantedCritical
Publication of JPH0324452Y2publicationCriticalpatent/JPH0324452Y2/ja