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经营范围
发明名称
LOOP MONITOR
摘要
申请公布号
JPH0548630(A)
申请公布日期
1993.02.26
申请号
JP19910228599
申请日期
1991.08.14
申请人
NEC CORP
发明人
HYODO KOICHI
分类号
H04L12/42
主分类号
H04L12/42
代理机构
代理人
主权项
地址
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