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Priority to JP1978050722UpriorityCriticalpatent/JPS5722460Y2/ja
Priority to GB7905340Aprioritypatent/GB2017540B/en
Publication of JPS54153355UpublicationCriticalpatent/JPS54153355U/ja
Application grantedgrantedCritical
Publication of JPS5722460Y2publicationCriticalpatent/JPS5722460Y2/ja