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发明名称
Vacuum tube
摘要
申请公布号
US1780033(A)
申请公布日期
1930.10.28
申请号
US19270174863
申请日期
1927.03.12
申请人
GENERAL ELECTRIC COMPANY
发明人
NOLTE HENRY J.;RELYEA WALTER I.
分类号
H01J1/18
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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