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经营范围
发明名称
CHANNEL DIAGNOSING DEVICE
摘要
申请公布号
JPH0265395(A)
申请公布日期
1990.03.06
申请号
JP19880215219
申请日期
1988.08.31
申请人
NEC CORP
发明人
KASHIWAI TAKASHI
分类号
H04Q1/24
主分类号
H04Q1/24
代理机构
代理人
主权项
地址
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