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Priority to JP48080438ApriorityCriticalpatent/JPS587560B2/ja
Priority to GB1415674Aprioritypatent/GB1460942A/en
Priority to IT49993/74Aprioritypatent/IT1005918B/it
Publication of JPS5028014ApublicationCriticalpatent/JPS5028014A/ja
Publication of JPS587560B2publicationCriticalpatent/JPS587560B2/ja