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经营范围
发明名称
Improvements in or relating to electric carrier wave modulating arrangements
摘要
申请公布号
GB834194(A)
申请公布日期
1960.05.04
申请号
GB19580037537
申请日期
1958.11.21
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
BECK ARTHUR CECIL
分类号
H03C1/50
主分类号
H03C1/50
代理机构
代理人
主权项
地址
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