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发明名称
Bâti pour amplificateurs à large bande et amplificateurs de télévision
摘要
申请公布号
FR834434(A)
申请公布日期
1938.11.21
申请号
FRD834434
申请日期
1938.02.28
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H03F1/54
主分类号
H03F1/54
代理机构
代理人
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