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经营范围
发明名称
TELEPHONE LINE TEST SYSTEM
摘要
申请公布号
JPH0556155(A)
申请公布日期
1993.03.05
申请号
JP19910211240
申请日期
1991.08.23
申请人
NEC CORP
发明人
TATEISHI HIDEO;OKAWA YOSHITAKE
分类号
H04M1/24;H04M3/30
主分类号
H04M1/24
代理机构
代理人
主权项
地址
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