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经营范围
发明名称
Катодный генератор
摘要
申请公布号
SU19272(A1)
申请公布日期
1931.02.28
申请号
SU19280025793
申请日期
1928.03.28
申请人
TELEFUNKEN;O-VO BESPROVOLOCHNOJ TELEGRAFII S OGR. OTV.
发明人
V. KUMMERER
分类号
H03B5/04
主分类号
H03B5/04
代理机构
代理人
主权项
地址
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