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发明名称
Perfectionnements aux tubes à ondes progressives
摘要
申请公布号
FR1150045(A)
申请公布日期
1958.01.06
申请号
FRD1150045
申请日期
1956.04.25
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J23/26;H01J23/28;H01J25/46
主分类号
H01J23/26
代理机构
代理人
主权项
地址
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