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发明名称
Electron tube and method of making the same
摘要
申请公布号
US2457651(A)
申请公布日期
1948.12.28
申请号
US19460655068
申请日期
1946.03.18
申请人
EITEL-MCCULLOUGH, INC.
发明人
EAVES HUBERT;WILLIAMS PAUL D.
分类号
H01J9/04
主分类号
H01J9/04
代理机构
代理人
主权项
地址
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