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经营范围
发明名称
Procédé d'amplification de tensions ou de courants continus
摘要
申请公布号
FR1145466(A)
申请公布日期
1957.10.25
申请号
FRD1145466
申请日期
1956.02.03
申请人
COMPAGNIE FRANCAISE THOMSON-HOUSTON
发明人
分类号
G01N27/26;H03F3/36;H03F3/40
主分类号
G01N27/26
代理机构
代理人
主权项
地址
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