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Priority to JP44035974ApriorityCriticalpatent/JPS5018278B1/ja
Priority to US858425Aprioritypatent/US3628338A/en
Priority to DE19691947153prioritypatent/DE1947153A1/de
Priority to GB1289357Dprioritypatent/GB1289357A/en
Publication of JPS5018278B1publicationCriticalpatent/JPS5018278B1/ja