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Priority to JP1976053953UpriorityCriticalpatent/JPS5624876Y2/ja
Priority to AU24086/77Aprioritypatent/AU2408677A/en
Publication of JPS52145561UpublicationCriticalpatent/JPS52145561U/ja
Application grantedgrantedCritical
Publication of JPS5624876Y2publicationCriticalpatent/JPS5624876Y2/ja