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发明名称
Appareil à décharge dans le vide avec remplissage de gaz ou de vapeur dans une enveloppe métallique
摘要
申请公布号
FR50327(E)
申请公布日期
1940.03.16
申请号
FRD50327
申请日期
1939.03.29
申请人
发明人
LEHMANN WALTER
分类号
H01J13/32
主分类号
H01J13/32
代理机构
代理人
主权项
地址
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