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Priority to JP8952369ApriorityCriticalpatent/JPS508719B1/ja
Priority to US35199Aprioritypatent/US3635664A/en
Priority to GB22632/70Aprioritypatent/GB1271891A/en
Priority to DE19702027018prioritypatent/DE2027018A1/de
Publication of JPS508719B1publicationCriticalpatent/JPS508719B1/ja