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经营范围
发明名称
Perfectionnements aux amplificateurs
摘要
申请公布号
FR861586(A)
申请公布日期
1941.02.12
申请号
FRD861586
申请日期
1939.11.13
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H03G11/04
主分类号
H03G11/04
代理机构
代理人
主权项
地址
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