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发明名称
Perfectionnements aux tubes à atmosphère gazeuse
摘要
申请公布号
FR1008814(A)
申请公布日期
1952.05.22
申请号
FRD1008814
申请日期
1949.12.30
申请人
COMPAGNIE FRANCAISE THOMSON-HOUSTON
发明人
分类号
H01J17/26
主分类号
H01J17/26
代理机构
代理人
主权项
地址
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