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发明名称
Perfectionnements aux tubes à champs magnétique et électrique croisés
摘要
申请公布号
FR1102192(A)
申请公布日期
1955.10.18
申请号
FRD1102192
申请日期
1954.04.02
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J25/42
主分类号
H01J25/42
代理机构
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