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经营范围
发明名称
Lampe à cathode incandescente
摘要
申请公布号
FR780258(A)
申请公布日期
1935.04.23
申请号
FRD780258
申请日期
1934.10.27
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
分类号
H01J1/20
主分类号
H01J1/20
代理机构
代理人
主权项
地址
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