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发明名称
Electron tube
摘要
申请公布号
US2879428(A)
申请公布日期
1959.03.24
申请号
US19550524676
申请日期
1955.07.27
申请人
EITEL-MCCULLOUGH, INC.
发明人
WILLIAMS PAUL D.
分类号
H01J19/34
主分类号
H01J19/34
代理机构
代理人
主权项
地址
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