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发明名称
DATA UPDATING SYSTEM FOR SEQUENTIAL FILE
摘要
申请公布号
JPH0392944(A)
申请公布日期
1991.04.18
申请号
JP19890230718
申请日期
1989.09.06
申请人
NEC CORP
发明人
KARIYA YOSHIO
分类号
G06F12/00
主分类号
G06F12/00
代理机构
代理人
主权项
地址
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