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Priority to JP48037628ApriorityCriticalpatent/JPS5757360B2/ja
Priority to GB1415674Aprioritypatent/GB1460942A/en
Priority to IT49993/74Aprioritypatent/IT1005918B/it
Publication of JPS49124610ApublicationCriticalpatent/JPS49124610A/ja
Publication of JPS5757360B2publicationCriticalpatent/JPS5757360B2/ja