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Priority to JP7266271ApriorityCriticalpatent/JPS5224444B2/ja
Priority to DE19722230371prioritypatent/DE2230371A1/de
Priority to US265511Aprioritypatent/US3861612A/en
Publication of JPS4840504ApublicationCriticalpatent/JPS4840504A/ja
Publication of JPS5224444B2publicationCriticalpatent/JPS5224444B2/ja