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Priority to JP13416970UpriorityCriticalpatent/JPS5025452Y1/ja
Priority to GB5820771Aprioritypatent/GB1368788A/en
Priority to DE2164866Aprioritypatent/DE2164866C3/de
Priority to US00212156Aprioritypatent/US3784850A/en
Priority to FR7147167Aprioritypatent/FR2121040A5/fr
Publication of JPS5025452Y1publicationCriticalpatent/JPS5025452Y1/ja