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发明名称
Metallballonelektronenröhre.
摘要
申请公布号
AT158366(B)
申请公布日期
1940.04.10
申请号
ATD158366
申请日期
1936.06.25
申请人
VEREINIGTE GLUEHLAMPEN UND ELEKTRIZITAETS AKTIENGESELLSCHAFT
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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