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Priority to JP11302975UpriorityCriticalpatent/JPS5758563Y2/ja
Priority to DE19762607352prioritypatent/DE2607352C3/de
Publication of JPS5227203UpublicationCriticalpatent/JPS5227203U/ja
Application grantedgrantedCritical
Publication of JPS5758563Y2publicationCriticalpatent/JPS5758563Y2/ja