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Priority to JP17052075UpriorityCriticalpatent/JPS5441465Y2/ja
Priority to GB9497/76Aprioritypatent/GB1514017A/en
Priority to US05/665,659prioritypatent/US4278286A/en
Publication of JPS5284119UpublicationCriticalpatent/JPS5284119U/ja
Application grantedgrantedCritical
Publication of JPS5441465Y2publicationCriticalpatent/JPS5441465Y2/ja