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经营范围
发明名称
Design of broad band repeaters
摘要
申请公布号
GB542175(A)
申请公布日期
1941.12.30
申请号
GB19400011003
申请日期
1940.06.28
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H03F1/50
主分类号
H03F1/50
代理机构
代理人
主权项
地址
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