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Priority to JP1981077820UpriorityCriticalpatent/JPS6115996Y2/ja
Priority to EP19820300084prioritypatent/EP0060013B1/en
Priority to NZ19944682Aprioritypatent/NZ199446A/en
Priority to DE8282300084Tprioritypatent/DE3265117D1/de
Publication of JPS57191481UpublicationCriticalpatent/JPS57191481U/ja
Application grantedgrantedCritical
Publication of JPS6115996Y2publicationCriticalpatent/JPS6115996Y2/ja