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经营范围
发明名称
Amplificateur en cascade
摘要
申请公布号
FR1169477(A)
申请公布日期
1958.12.29
申请号
FRD1169477
申请日期
1957.03.14
申请人
发明人
HARTOG ROBERT JEAN
分类号
H03F1/50
主分类号
H03F1/50
代理机构
代理人
主权项
地址
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