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经营范围
发明名称
Tube électronique pour commutation et commande
摘要
申请公布号
FR1043047(A)
申请公布日期
1953.11.05
申请号
FRD1043047
申请日期
1951.05.30
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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