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Application filed by 日本国有鉄道, 石橋産業株式会社filedCritical日本国有鉄道
Priority to JP11933681UpriorityCriticalpatent/JPS5825448U/ja
Publication of JPS5825448UpublicationCriticalpatent/JPS5825448U/ja
Application grantedgrantedCritical
Publication of JPS6328267Y2publicationCriticalpatent/JPS6328267Y2/ja