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经营范围
发明名称
Distortion correction in electric wave transmission
摘要
申请公布号
GB517601(A)
申请公布日期
1940.02.02
申请号
GB19380023601
申请日期
1938.08.10
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H04B3/04
主分类号
H04B3/04
代理机构
代理人
主权项
地址
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