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Priority to JP48035057ApriorityCriticalpatent/JPS49124064A/ja
Priority to GB1252274Aprioritypatent/GB1417363A/en
Priority to FR7410578Aprioritypatent/FR2223366A1/fr
Priority to DE19742415081prioritypatent/DE2415081A1/de
Publication of JPS49124064ApublicationCriticalpatent/JPS49124064A/ja