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发明名称
INFORMATION RETRIEVING SYSTEM USING KEYWORD
摘要
申请公布号
JPH0581319(A)
申请公布日期
1993.04.02
申请号
JP19910238229
申请日期
1991.09.18
申请人
NEC CORP
发明人
NAKAMURA KOICHI
分类号
G06F17/30
主分类号
G06F17/30
代理机构
代理人
主权项
地址
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