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发明名称
Electron tube
摘要
申请公布号
US2204217(A)
申请公布日期
1940.06.11
申请号
US19380229246
申请日期
1938.09.10
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
HERRIGER FELIX
分类号
H01J5/20;H01J19/42
主分类号
H01J5/20
代理机构
代理人
主权项
地址
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