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发明名称
Improvements in or relating to thermionic electric discharge devices
摘要
申请公布号
GB619720(A)
申请公布日期
1949.03.14
申请号
GB19460037499
申请日期
1946.12.20
申请人
THE M-O VALVE COMPANY LIMITED;GEOFFREY WILLIAM WARREN
发明人
分类号
H01J19/00
主分类号
H01J19/00
代理机构
代理人
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地址
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