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发明名称
Tube à flux d'électrons avec une grille écran composée d'une grille tubulaire àmailles
摘要
申请公布号
FR1088052(A)
申请公布日期
1955.03.02
申请号
FRD1088052
申请日期
1953.11.24
申请人
SIEMENS & HALSKE A. G.
发明人
分类号
H01J19/38
主分类号
H01J19/38
代理机构
代理人
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地址
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