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发明名称
Glühkathodenröhre.
摘要
申请公布号
AT120589(B)
申请公布日期
1930.12.27
申请号
ATD120589
申请日期
1930.01.08
申请人
FIRMA JOH. KREMENEZKY
发明人
ING. CARL SCHOENBAUER
分类号
主分类号
代理机构
代理人
主权项
地址
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