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发明名称
Tube électronique à enveloppe partiellement métallique.
摘要
申请公布号
CH259946(A)
申请公布日期
1949.02.15
申请号
CHD259946
申请日期
1947.05.27
申请人
STANDARD TELEPHONE ET RADIO S.A.
发明人
S.A. STANDARD TELEPHONE ET RADIO
分类号
H01J19/36
主分类号
H01J19/36
代理机构
代理人
主权项
地址
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