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经营范围
发明名称
STRENGTHENING DISCHARGE TUBE ENVELOPES
摘要
申请公布号
IE15792(L)
申请公布日期
1940.03.08
申请号
IED15792
申请日期
1939.08.14
申请人
THE GENERAL ELECTRIC CO. LTD.
发明人
分类号
H01J9/24;(IPC1-7):H01J9/24
主分类号
H01J9/24
代理机构
代理人
主权项
地址
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