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Priority to JP741071UpriorityCriticalpatent/JPS522392Y2/ja
Priority to US00220012Aprioritypatent/US3803575A/en
Priority to FR7204791Aprioritypatent/FR2125436B1/fr
Publication of JPS476779UpublicationCriticalpatent/JPS476779U/ja
Application grantedgrantedCritical
Publication of JPS522392Y2publicationCriticalpatent/JPS522392Y2/ja