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Priority to JP4447073ApriorityCriticalpatent/JPS49131162A/ja
Priority to US00360552Aprioritypatent/US3797226A/en
Priority to FR7317804Aprioritypatent/FR2184949B1/fr
Priority to GB2331073Aprioritypatent/GB1397492A/en
Publication of JPS49131162ApublicationCriticalpatent/JPS49131162A/ja