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发明名称
Electron tube
摘要
申请公布号
US2105026(A)
申请公布日期
1938.01.11
申请号
US19340758672
申请日期
1934.12.21
申请人
N. V. MACHINERIEEN-EN APPARATEN FABRIEKEN "MEAF"
发明人
DALLENBACH WALTER
分类号
H01J3/02
主分类号
H01J3/02
代理机构
代理人
主权项
地址
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