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发明名称
Einrichtung zur Erzeugung grosser Elektronenströme in Entladungsröhren.
摘要
申请公布号
CH154644(A)
申请公布日期
1932.05.15
申请号
CHD154644
申请日期
1931.05.29
申请人
SIGNUM A. G.
发明人
G. SIGNUM A.
分类号
H01J19/14
主分类号
H01J19/14
代理机构
代理人
主权项
地址
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