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摘要
申请公布号
JPH01277918(A)
申请公布日期
1989.11.08
申请号
JP19880108640
申请日期
1988.04.28
申请人
NEC CORP
发明人
OKUMURA AKITOSHI
分类号
G06F3/023;H03M11/22
主分类号
G06F3/023
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