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发明名称
Electron tube
摘要
申请公布号
GB444559(A)
申请公布日期
1936.03.18
申请号
GB19340018127
申请日期
1934.06.19
申请人
VEREINIGTE GLUEHLAMPEN UND ELECTRICITAETS AKTIENGESELLSCHAFT
发明人
分类号
H01J21/20
主分类号
H01J21/20
代理机构
代理人
主权项
地址
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