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发明名称
Improvements in or relating to tone-controlling impedance networks
摘要
申请公布号
GB514285(A)
申请公布日期
1939.11.03
申请号
GB19380013061
申请日期
1938.05.02
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
分类号
H03G5/06
主分类号
H03G5/06
代理机构
代理人
主权项
地址
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