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Priority to JP16915782UpriorityCriticalpatent/JPS5972726U/ja
Priority to EP83107498Aprioritypatent/EP0100539A3/en
Priority to KR1019830003575Aprioritypatent/KR920001025B1/ko
Publication of JPS5972726UpublicationCriticalpatent/JPS5972726U/ja
Application grantedgrantedCritical
Publication of JPS6236279Y2publicationCriticalpatent/JPS6236279Y2/ja