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经营范围
发明名称
SIGNAL BLOCK ELIMINATING CIRCUIT FOR LOOP NETWORK
摘要
申请公布号
JPH01117446(A)
申请公布日期
1989.05.10
申请号
JP19870274941
申请日期
1987.10.30
申请人
NEC CORP
发明人
MORIMURA TADAAKI
分类号
H04B1/74
主分类号
H04B1/74
代理机构
代理人
主权项
地址
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