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Priority to JP1493976UpriorityCriticalpatent/JPS5717292Y2/ja
Priority to US05/715,023prioritypatent/US4060095A/en
Publication of JPS52107191UpublicationCriticalpatent/JPS52107191U/ja
Application grantedgrantedCritical
Publication of JPS5717292Y2publicationCriticalpatent/JPS5717292Y2/ja