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Application filed by ベルテツク株式会社filedCriticalベルテツク株式会社
Priority to JP1978061332UpriorityCriticalpatent/JPS5847545Y2/ja
Publication of JPS54163614UpublicationCriticalpatent/JPS54163614U/ja
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Publication of JPS5847545Y2publicationCriticalpatent/JPS5847545Y2/ja