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Priority to JP1989042197UpriorityCriticalpatent/JPH0437704Y2/ja
Publication of JPH01163055UpublicationCriticalpatent/JPH01163055U/ja
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Publication of JPH0437704Y2publicationCriticalpatent/JPH0437704Y2/ja
Method and apparatus for cleaning cylindrical outer surface of a disk for manufacturing disk-type information recording medium and a disk-type information recording medium made by using a disk cleaned by said method or apparatus