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经营范围
发明名称
Glühkathode.
摘要
申请公布号
AT126310(B)
申请公布日期
1932.01.11
申请号
ATD126310
申请日期
1930.10.31
申请人
VEREINIGTE GLUEHLAMPEN UND ELECTRICITAETS ACTIENGESELLSCHAFT
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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