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经营范围
发明名称
Perfectionnements apportés aux tubes à onde progressive
摘要
申请公布号
FR76889(E)
申请公布日期
1961.12.15
申请号
FR19590814464
申请日期
1959.12.30
申请人
COMPAGNIE FRANCAISE THOMSON-HOUSTON
发明人
分类号
H01J25/38
主分类号
H01J25/38
代理机构
代理人
主权项
地址
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