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发明名称
Electron discharge devices
摘要
申请公布号
US2806169(A)
申请公布日期
1957.09.10
申请号
US19510263735
申请日期
1951.12.28
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
ROBERTSON GEORGE H.;WALSH EDWARD J.
分类号
H01J25/38
主分类号
H01J25/38
代理机构
代理人
主权项
地址
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