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Priority to JP5094273ApriorityCriticalpatent/JPS49135010A/ja
Priority to DE2421546Aprioritypatent/DE2421546A1/de
Priority to US05/467,486prioritypatent/US3991725A/en
Priority to GB1976774Aprioritypatent/GB1465827A/en
Publication of JPS49135010ApublicationCriticalpatent/JPS49135010A/ja