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经营范围
发明名称
Elektrische Entladungsroehre mit eingebauten Elektroden
摘要
申请公布号
DE598153(C)
申请公布日期
1934.06.06
申请号
DE1932N033437D
申请日期
1932.03.13
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01J5/40;H01J5/42;H01J5/46
主分类号
H01J5/40
代理机构
代理人
主权项
地址
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