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Priority to JP47018360ApriorityCriticalpatent/JPS5115973B2/ja
Priority to US00318962Aprioritypatent/US3844379A/en
Priority to GB5982172Aprioritypatent/GB1420085A/en
Publication of JPS4888925ApublicationCriticalpatent/JPS4888925A/ja
Publication of JPS5115973B2publicationCriticalpatent/JPS5115973B2/ja