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经营范围
发明名称
Perfectionnements aux procédés d'ionisation et à leurs applications
摘要
申请公布号
FR45223(E)
申请公布日期
1935.07.17
申请号
FRD45223
申请日期
1934.08.14
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H01J61/54
主分类号
H01J61/54
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代理人
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地址
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