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发明名称
Mounts for electron tubes having filamentary cathodes
摘要
申请公布号
US2708248(A)
申请公布日期
1955.05.10
申请号
US19510223484
申请日期
1951.04.28
申请人
RADIO CORPORATION
发明人
GREEN NORVAL H.
分类号
H01J1/18
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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