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Application filed by 古河アルミニウム工業株式会社, 株式会社東食filedCritical古河アルミニウム工業株式会社
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Publication of JPS5321713UpublicationCriticalpatent/JPS5321713U/ja
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Publication of JPS6017441Y2publicationCriticalpatent/JPS6017441Y2/ja