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经营范围
发明名称
électrodes d'amorçage pour tubes à décharge à cathodes liquides
摘要
申请公布号
FR48243(E)
申请公布日期
1937.11.23
申请号
FRD48243
申请日期
1937.03.10
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H02M7/15
主分类号
H02M7/15
代理机构
代理人
主权项
地址
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