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Application filed by 日本軽金属株式会社, 新日軽株式会社filedCritical日本軽金属株式会社
Priority to JP8396880UpriorityCriticalpatent/JPS6030337Y2/ja
Publication of JPS578228UpublicationCriticalpatent/JPS578228U/ja
Application grantedgrantedCritical
Publication of JPS6030337Y2publicationCriticalpatent/JPS6030337Y2/ja