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Priority to JP49071179ApriorityCriticalpatent/JPS50161488A/ja
Priority to DE19752502974prioritypatent/DE2502974B2/de
Priority to FR7503981Aprioritypatent/FR2275567A1/fr
Priority to GB22893/75Aprioritypatent/GB1505392A/en
Publication of JPS50161488ApublicationCriticalpatent/JPS50161488A/ja