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经营范围
发明名称
ELEKTRONENSTRAHLROEHRE
摘要
申请公布号
DD217360(A5)
申请公布日期
1985.01.09
申请号
DD19840262659
申请日期
1984.05.03
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN,NL
发明人
BIJMA,JAN,NL;GERRITSEN,JAN,NL
分类号
H01J31/20;H01J29/48;H01J29/50;(IPC1-7):H01J29/48
主分类号
H01J31/20
代理机构
代理人
主权项
地址
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