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发明名称
Electron tube
摘要
申请公布号
US2032545(A)
申请公布日期
1936.03.03
申请号
US19310571247
申请日期
1931.10.26
申请人
MCELRATH HUNTER B
发明人
MCELRATH HUNTER B.
分类号
H01J1/30
主分类号
H01J1/30
代理机构
代理人
主权项
地址
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