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发明名称
Ultrashort wave tube
摘要
申请公布号
US2074253(A)
申请公布日期
1937.03.16
申请号
US19340738000
申请日期
1934.08.01
申请人
N. V. MACHINERIEEN-EN APPARATEN FABRIEKEN "MEAF"
发明人
DALLENBACH WALTER
分类号
H01J25/70
主分类号
H01J25/70
代理机构
代理人
主权项
地址
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