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Priority to JP630280UpriorityCriticalpatent/JPS5926902Y2/ja
Priority to US06/226,778prioritypatent/US4385553A/en
Publication of JPS56108810UpublicationCriticalpatent/JPS56108810U/ja
Application grantedgrantedCritical
Publication of JPS5926902Y2publicationCriticalpatent/JPS5926902Y2/ja