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经营范围
发明名称
Carrier current transmission systems
摘要
申请公布号
GB531425(A)
申请公布日期
1941.01.03
申请号
GB19390021254
申请日期
1939.07.21
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H04B3/10
主分类号
H04B3/10
代理机构
代理人
主权项
地址
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