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Priority to JP1973019758UpriorityCriticalpatent/JPS5321480Y2/ja
Priority to DE19742407295prioritypatent/DE2407295A1/de
Priority to FR7405344Aprioritypatent/FR2218648A1/fr
Publication of JPS49121460UpublicationCriticalpatent/JPS49121460U/ja
Application grantedgrantedCritical
Publication of JPS5321480Y2publicationCriticalpatent/JPS5321480Y2/ja