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Priority to JP6995268ApriorityCriticalpatent/JPS506057B1/ja
Priority to GB548369Aprioritypatent/GB1245521A/en
Priority to FR6902081Aprioritypatent/FR2001210A1/fr
Priority to DE19691905172prioritypatent/DE1905172A1/de
Publication of JPS506057B1publicationCriticalpatent/JPS506057B1/ja