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经营范围
发明名称
UN DISPOSITIVO QUE CONTIENE UN TUBO DE DESCARGA
摘要
申请公布号
ES163959(A1)
申请公布日期
1947.10.16
申请号
ES19590001639
申请日期
1943.12.02
申请人
PHILIPS'GLOEILAMPENFABRIEKEN, N. V.
发明人
分类号
(IPC1-7):H01J
主分类号
(IPC1-7):H01J
代理机构
代理人
主权项
地址
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