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Priority to JP10975474UpriorityCriticalpatent/JPS5350057Y2/ja
Priority to US05/608,739prioritypatent/US4024367A/en
Publication of JPS5137278UpublicationCriticalpatent/JPS5137278U/ja
Application grantedgrantedCritical
Publication of JPS5350057Y2publicationCriticalpatent/JPS5350057Y2/ja