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发明名称
Radioroehre mit abnehmbaren Glaskolben
摘要
申请公布号
DE579415(C)
申请公布日期
1933.06.27
申请号
DENDATF071346D
申请日期
申请人
ALBERT FRANCOIS
发明人
分类号
H01J5/30;H01J5/54;H01J19/66
主分类号
H01J5/30
代理机构
代理人
主权项
地址
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