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Priority to JP14126074UpriorityCriticalpatent/JPS5221243Y2/ja
Priority to NL7507749Aprioritypatent/NL7507749A/xx
Priority to FR7522595Aprioritypatent/FR2291830A1/fr
Publication of JPS5168254UpublicationCriticalpatent/JPS5168254U/ja
Application grantedgrantedCritical
Publication of JPS5221243Y2publicationCriticalpatent/JPS5221243Y2/ja