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经营范围
发明名称
Improvements in or relating to frequency discriminator circuit arrangements
摘要
申请公布号
GB621694(A)
申请公布日期
1949.04.14
申请号
GB19460020973
申请日期
1946.07.12
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY, LIMITED;BRIAN EASTER
发明人
分类号
H03D3/16;H03J7/04
主分类号
H03D3/16
代理机构
代理人
主权项
地址
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