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经营范围
发明名称
Perfectionnements au montage des électrodes dans les tubes à décharge et analogues
摘要
申请公布号
FR877993(A)
申请公布日期
1943.01.07
申请号
FRD877993
申请日期
1941.12.23
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H01J1/18
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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