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发明名称
DATA BASE RETRIEVAL SYSTEM
摘要
申请公布号
JPH02194471(A)
申请公布日期
1990.08.01
申请号
JP19890013736
申请日期
1989.01.23
申请人
MITSUBISHI ELECTRIC CORP
发明人
WATANABE HIDEJI
分类号
G06F17/30
主分类号
G06F17/30
代理机构
代理人
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