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经营范围
发明名称
Frequency discriminator circuits
摘要
申请公布号
GB587212(A)
申请公布日期
1947.04.17
申请号
GB19440025211
申请日期
1944.12.15
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
H03D3/08
主分类号
H03D3/08
代理机构
代理人
主权项
地址
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