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Priority to JP3607876UpriorityCriticalpatent/JPS555246Y2/ja
Priority to JP5905479Uprioritypatent/JPS552580U/ja
Publication of JPS52127395UpublicationCriticalpatent/JPS52127395U/ja
Application grantedgrantedCritical
Publication of JPS555246Y2publicationCriticalpatent/JPS555246Y2/ja