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经营范围
发明名称
LINE SIGNAL FAULT DETECTION SYSTEM
摘要
申请公布号
GB2087573(B)
申请公布日期
1984.05.23
申请号
GB19810034285
申请日期
1981.11.13
申请人
GEC GENERAL SIGNAL LTD
发明人
分类号
B61L7/10;G01R19/165;G01R31/02;(IPC1-7):G01R31/02
主分类号
B61L7/10
代理机构
代理人
主权项
地址
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