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发明名称
Elektrode für elektrische Entladungsröhren
摘要
申请公布号
AT167787(B)
申请公布日期
1951.02.26
申请号
ATD167787
申请日期
1948.09.23
申请人
LUMALAMPAN AKTIEBOLAG
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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