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Application filed by シルバー精工株式会社, 柏崎シルバー精工株式会社filedCriticalシルバー精工株式会社
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Publication of JPH031991UpublicationCriticalpatent/JPH031991U/ja
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Publication of JPH0643195Y2publicationCriticalpatent/JPH0643195Y2/ja