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发明名称
Improvements in or relating to electron discharge devices
摘要
申请公布号
GB484310(A)
申请公布日期
1938.05.04
申请号
GB19360030328
申请日期
1936.11.06
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;ERNEST WALTER BRUDENELL GILL
发明人
分类号
H01J40/16
主分类号
H01J40/16
代理机构
代理人
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地址
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