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发明名称
Cold cathode discharge tube
摘要
申请公布号
US1993187(A)
申请公布日期
1935.03.05
申请号
US19290401110
申请日期
1929.10.21
申请人
ELECTRONS, INC.
发明人
SPANNER HANS J.;GERMER EDMUND
分类号
H01J17/06
主分类号
H01J17/06
代理机构
代理人
主权项
地址
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