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发明名称
Improvements in or relating to radio-receiving apparatus
摘要
申请公布号
GB523881(A)
申请公布日期
1940.07.24
申请号
GB19390008352
申请日期
1939.03.15
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H03J5/14;H03J5/16
主分类号
H03J5/14
代理机构
代理人
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