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经营范围
发明名称
Electron discharge vessel
摘要
申请公布号
GB618811(A)
申请公布日期
1949.02.28
申请号
GB19460033252
申请日期
1946.11.08
申请人
ARNO BRASCH;WOLFGANG HUBER
发明人
分类号
H01J5/18
主分类号
H01J5/18
代理机构
代理人
主权项
地址
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