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经营范围
发明名称
Improved electric discharge tube comprising a fluorescent screen
摘要
申请公布号
GB498914(A)
申请公布日期
1939.01.13
申请号
GB19370010418
申请日期
1937.04.12
申请人
N. V. PHILIPS' GLOEILAMPEN-FABRIEKEN
发明人
分类号
H01J29/18
主分类号
H01J29/18
代理机构
代理人
主权项
地址
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