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Priority to JP9813069ApriorityCriticalpatent/JPS4816981B1/ja
Priority to GB2134970Aprioritypatent/GB1313701A/en
Priority to DE2022279Aprioritypatent/DE2022279C3/de
Priority to FR7016643Aprioritypatent/FR2047421A5/fr
Priority to US00256258Aprioritypatent/US3773713A/en
Publication of JPS4816981B1publicationCriticalpatent/JPS4816981B1/ja