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经营范围
发明名称
Tube électronique pour ondes ultra-courtes.
摘要
申请公布号
CH267800(A)
申请公布日期
1950.04.15
申请号
CHD267800
申请日期
1947.11.05
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
分类号
H01J25/38
主分类号
H01J25/38
代理机构
代理人
主权项
地址
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