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经营范围
发明名称
Tube électronique.
摘要
申请公布号
CH288008(A)
申请公布日期
1952.12.31
申请号
CHD288008
申请日期
1947.09.25
申请人
STANDARD TELEPHONE ET RADIO S. A.
发明人
STANDARD TELEPHONE ET RADIO S. A.
分类号
H01J21/36
主分类号
H01J21/36
代理机构
代理人
主权项
地址
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