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经营范围
发明名称
Electron tube and circuit employing it
摘要
申请公布号
US2215779(A)
申请公布日期
1940.09.24
申请号
US19390278205
申请日期
1939.06.09
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
CLAVIER ANDRE GABRIEL;ROSTAS ERNEST
分类号
H01J25/32
主分类号
H01J25/32
代理机构
代理人
主权项
地址
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