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发明名称
Dispositifs à décharge électronique
摘要
申请公布号
FR862317(A)
申请公布日期
1941.03.04
申请号
FRD862317
申请日期
1939.12.12
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H01J1/26
主分类号
H01J1/26
代理机构
代理人
主权项
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