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Application filed by 当麻硬板株式会社filedCritical当麻硬板株式会社
Priority to JP19417484UpriorityCriticalpatent/JPS60141311U/ja
Publication of JPS60141311UpublicationCriticalpatent/JPS60141311U/ja
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Publication of JPS6128815Y2publicationCriticalpatent/JPS6128815Y2/ja