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发明名称
Lampe amplificatrice et oscillatrice avec commande par une onde progressive
摘要
申请公布号
FR946141(A)
申请公布日期
1949.05.24
申请号
FRD946141
申请日期
1947.04.21
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J25/38
主分类号
H01J25/38
代理机构
代理人
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