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1.发明公开INFORMATION PROCESSING APPARATUS, DOCUMENT RETRIEVAL SYSTEM, DOCUMENT RETRIEVAL METHOD, AND PROGRAM 有权信息处理设备，文档检索系统，文献检索方法及程序
公开(公告)号：EP2352103A4
公开(公告)日：2013-05-15
申请号：EP09819052
申请日：2009-08-14
Applicant: IBM
Inventor： NISHIKAWA HIROFUMI , KIKUCHI HIROAKI
CPC classification number: G06F17/30011 , G06F21/6227 , G06F2221/2117 , G06F2221/2141 , G06F2221/2145
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