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Application filed by 石川島建材工業株式会社filedCritical石川島建材工業株式会社
Priority to JP3594384UpriorityCriticalpatent/JPS60148449U/ja
Publication of JPS60148449UpublicationCriticalpatent/JPS60148449U/ja
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Publication of JPH0145299Y2publicationCriticalpatent/JPH0145299Y2/ja