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发明名称
Electron discharge device
摘要
申请公布号
US2105924(A)
申请公布日期
1938.01.18
申请号
US19350043293
申请日期
1935.10.03
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MENDENHALL HALLAM E.
分类号
H01J25/68
主分类号
H01J25/68
代理机构
代理人
主权项
地址
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