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发明名称
Tube électronique
摘要
申请公布号
FR926120(A)
申请公布日期
1947.09.23
申请号
FRD926120
申请日期
1946.04.29
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J7/44;H01J19/66;H01J19/78
主分类号
H01J7/44
代理机构
代理人
主权项
地址
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