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经营范围
发明名称
Electron tube
摘要
申请公布号
US2859372(A)
申请公布日期
1958.11.04
申请号
US19560597011
申请日期
1956.07.10
申请人
EITEL-MCCULLOUGH, INC.
发明人
STANGL MORRAINE E.
分类号
H01J19/66;H01J21/36
主分类号
H01J19/66
代理机构
代理人
主权项
地址
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