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发明名称
Schwingungsroehre mit elektrischer Entladung in einem gasarmen Medium
摘要
申请公布号
DE831422(C)
申请公布日期
1952.05.15
申请号
DE1950K001721
申请日期
1950.02.10
申请人
SIEGFRIED KLEIN
发明人
KLEIN SIEGFRIED
分类号
H01J17/48
主分类号
H01J17/48
代理机构
代理人
主权项
地址
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