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经营范围
发明名称
Tube cathodique avec chambre de modulation
摘要
申请公布号
FR787229(A)
申请公布日期
1935.09.19
申请号
FRD787229
申请日期
1934.06.13
申请人
COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ
发明人
分类号
H01J29/52
主分类号
H01J29/52
代理机构
代理人
主权项
地址
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