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发明名称
Electron discharge device
摘要
申请公布号
US2411913(A)
申请公布日期
1946.12.03
申请号
US19420459124
申请日期
1942.09.21
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
PIERCE JOHN R.;SHEPHERD WILLIAM G.
分类号
H01J25/24
主分类号
H01J25/24
代理机构
代理人
主权项
地址
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