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Priority to JP8023075UpriorityCriticalpatent/JPS5610011Y2/ja
Priority to US05/676,661prioritypatent/US4054844A/en
Publication of JPS51131163UpublicationCriticalpatent/JPS51131163U/ja
Application grantedgrantedCritical
Publication of JPS5610011Y2publicationCriticalpatent/JPS5610011Y2/ja