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Priority to JP2570874ApriorityCriticalpatent/JPS50120481A/ja
Priority to US05/472,446prioritypatent/US3993625A/en
Priority to GB2324774Aprioritypatent/GB1446127A/en
Priority to FR7418205Aprioritypatent/FR2231711B1/fr
Priority to DE2425563Aprioritypatent/DE2425563C3/de
Publication of JPS50120481ApublicationCriticalpatent/JPS50120481A/ja