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Priority to JP43038995ApriorityCriticalpatent/JPS4812121B1/ja
Priority to FR6900787Aprioritypatent/FR2000394A1/fr
Priority to DE19691902464prioritypatent/DE1902464A1/de
Priority to GB1230556Dprioritypatent/GB1230556A/en
Publication of JPS4812121B1publicationCriticalpatent/JPS4812121B1/ja