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发明名称
Electron transit time tube
摘要
申请公布号
US2469843(A)
申请公布日期
1949.05.10
申请号
US19460709925
申请日期
1946.11.15
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
PIERCE JOHN R.
分类号
H01J25/74
主分类号
H01J25/74
代理机构
代理人
主权项
地址
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