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经营范围
发明名称
Multiplicateur électronique
摘要
申请公布号
FR825439(A)
申请公布日期
1938.03.03
申请号
FRD825439
申请日期
1937.08.10
申请人
TELEFUNKEN GESELLSCHAFT FU:R DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H01J43/18
主分类号
H01J43/18
代理机构
代理人
主权项
地址
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