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Priority to JP712476UpriorityCriticalpatent/JPS5298845U/ja
Priority to FR7613023Aprioritypatent/FR2339313A1/fr
Priority to DE2619312Aprioritypatent/DE2619312C2/de
Priority to US05/682,161prioritypatent/US4034207A/en
Publication of JPS5298845UpublicationCriticalpatent/JPS5298845U/ja