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发明名称
DATA BASE UPDATING SYSTEM
摘要
申请公布号
JPH0476742(A)
申请公布日期
1992.03.11
申请号
JP19900190226
申请日期
1990.07.18
申请人
NEC CORP
发明人
FUKUYA TSUNEO
分类号
G06F17/30;G06F12/00
主分类号
G06F17/30
代理机构
代理人
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地址
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