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经营范围
发明名称
Tubes à radiations électroniques, notamment tubes de braun
摘要
申请公布号
FR886242(A)
申请公布日期
1943.10.08
申请号
FRD886242
申请日期
1942.09.29
申请人
LICENTIA PATENT-VERWALTUNGS-GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
分类号
H01J29/48
主分类号
H01J29/48
代理机构
代理人
主权项
地址
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