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Priority to JP2873273ApriorityCriticalpatent/JPS5331743B2/ja
Priority to US05/448,738prioritypatent/US3937049A/en
Priority to DE2411802Aprioritypatent/DE2411802A1/de
Publication of JPS49118465ApublicationCriticalpatent/JPS49118465A/ja
Publication of JPS5331743B2publicationCriticalpatent/JPS5331743B2/ja