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经营范围
发明名称
Procédé d'amplification de tensions électriques
摘要
申请公布号
FR1002609(A)
申请公布日期
1952.03.10
申请号
FRD1002609
申请日期
1949.10.10
申请人
发明人
SCHERWINSKI HERBERT
分类号
H03F3/40;H03F3/66
主分类号
H03F3/40
代理机构
代理人
主权项
地址
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