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Application filed by 日立機電工業株式会社filedCritical日立機電工業株式会社
Priority to JP1979085303UpriorityCriticalpatent/JPS5832877Y2/ja
Publication of JPS566594UpublicationCriticalpatent/JPS566594U/ja
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Publication of JPS5832877Y2publicationCriticalpatent/JPS5832877Y2/ja