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发明名称
Improvements in or relating to electron discharging devices
摘要
申请公布号
GB1099873(A)
申请公布日期
1968.01.17
申请号
GB19650015908
申请日期
1965.04.14
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H01J3/02;H01J23/065
主分类号
H01J3/02
代理机构
代理人
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