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Priority to JP13965776UpriorityCriticalpatent/JPS5722804Y2/ja
Priority to US05/755,651prioritypatent/US4127922A/en
Publication of JPS5358024UpublicationCriticalpatent/JPS5358024U/ja
Application grantedgrantedCritical
Publication of JPS5722804Y2publicationCriticalpatent/JPS5722804Y2/ja