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Priority to JP47027613ApriorityCriticalpatent/JPS525731B2/ja
Priority to US341195Aprioritypatent/US3921129A/en
Priority to CA166,938Aprioritypatent/CA997025A/en
Publication of JPS4894127ApublicationCriticalpatent/JPS4894127A/ja
Publication of JPS525731B2publicationCriticalpatent/JPS525731B2/ja