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经营范围
发明名称
Electric amplifying or repeating device
摘要
申请公布号
GB310471(A)
申请公布日期
1930.07.17
申请号
GB19290012176
申请日期
1929.04.19
申请人
STANDARD TELEPHONES AND CABLES, LIMITED
发明人
分类号
H01L21/16;H01L29/00;H03F9/00
主分类号
H01L21/16
代理机构
代理人
主权项
地址
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